refactor: doerg는 publisher와 결합

feat: 많은 테스트...
feat: backlinks
2026-04-03 13:31:16 -06:00 · 2026-04-02 13:26:38 -06:00 · 2026-03-30 15:39:20 -06:00 · 2026-03-28 23:05:02 -06:00 · 2026-03-28 23:04:38 -06:00 · 2026-03-28 22:24:12 -06:00
89 changed files with 3972 additions and 953 deletions
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -0,0 +1 @@
+((nil . ((cider-clojure-cli-aliases . ":dev:test"))))
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -0,0 +1,11 @@
+name: build
+on: [push]
+
+jobs:
+  build:
+    runs-on: nixos
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: build doerg
+        run: nix build -L .#doerg
--- a/.gitignore
+++ b/.gitignore
@@ -9,7 +9,6 @@ result-*
 .lsp
 .nrepl
 .direnv/
-resources/vendor/*
 node_modules
 .cljs_node_repl
 build/
--- a/bb.edn
+++ b/bb.edn
@@ -3,6 +3,6 @@
  lock
  {:doc "Update the clj-nix lockfile"
   :task (-> (p/sh {:out :inherit :err :inherit}
-                    "nix run github:jlesquembre/clj-nix#deps-lock")
+                   "nix run github:jlesquembre/clj-nix#deps-lock")
             :exit
             System/exit)}}}
--- a/default.nix
+++ b/default.nix
@@ -0,0 +1,77 @@
+{ mkCljBin
+, callPackage
+, lib
+, doerg-parser
+, doerg-temml-worker
+, ibm-plex-web
+, test-emacs ? callPackage ./test-emacs.nix {}
+, fake-git
+, our-tex
+, makeWrapper
+, writeText
+}:
+
+let
+  # mkCljBin sans fake-git. We don't need it, and I don't want it in
+  # my dev shell.
+  mkCljBin' = args: (mkCljBin args).overrideAttrs (final: prev: {
+    nativeBuildInputs =
+      builtins.filter
+        # A possibly-sketchy predicate, lol.
+        (x: x != fake-git)
+        prev.nativeBuildInputs;
+  });
+
+  plex = ibm-plex-web.override {
+    families = [ "math" "serif" "sans" "sans-kr" ];
+  };
+
+  bin-path = lib.makeBinPath [
+    doerg-parser
+    our-tex
+    doerg-temml-worker
+  ];
+
+  doerg-config = writeText "doerg-extra-config.edn" ''
+    #:net.deertopia.doerg
+    {:ibm-plex-web "${ibm-plex-web}"
+     :latex "${lib.getExe' our-tex "xelatex"}"
+     :dvisvgm "${lib.getExe' our-tex "dvisvgm"}"
+     :doerg-temml-worker "${lib.getExe doerg-temml-worker}"
+     :doerg-parser "${lib.getExe doerg-parser}"}
+  '';
+in mkCljBin' {
+  name = "net.deertopia/doerg";
+  version = "0.1.0";
+  projectSrc = lib.cleanSource ./.;
+  lockfile = ./deps-lock.json;
+  main-ns = "net.deertopia.doerg.main";
+  nativeBuildInputs = [
+    plex
+    makeWrapper
+  ];
+  buildInputs = [
+    doerg-parser
+    doerg-temml-worker
+    plex
+    our-tex
+  ];
+  nativeCheckInputs = [
+    doerg-parser
+    doerg-temml-worker
+    test-emacs
+    plex
+    our-tex
+  ];
+  preBuild = ''
+    cp ${doerg-config} resources/net/deertopia/doerg/extra-config.edn
+  '';
+  doCheck = true;
+  checkPhase = ''
+    export \
+      EMACS=test-emacs \
+      XDG_STATE_HOME=$(mktemp -d "state-home-XXXXXX")
+    clojure -M:test
+  '';
+  passthru = { inherit plex our-tex test-emacs; };
+}
--- a/deps-lock.json
+++ b/deps-lock.json
--- a/deps.edn
+++ b/deps.edn
@@ -0,0 +1,24 @@
+{:deps {aero/aero #:mvn{:version "1.1.6"}
+        babashka/fs #:mvn{:version "0.5.24"}
+        babashka/process #:mvn{:version "0.6.25"}
+        ch.qos.logback/logback-classic #:mvn{:version "1.1.3"}
+        cheshire/cheshire #:mvn{:version "6.1.0"}
+        com.github.seancorfield/next.jdbc #:mvn{:version "1.3.1070"}
+        com.rpl/specter #:mvn{:version "1.1.6"}
+        hiccup/hiccup #:mvn{:version "2.0.0-RC4"}
+        http-kit/http-kit #:mvn{:version "2.8.0"}
+        instaparse/instaparse #:mvn{:version "1.5.0"}
+        metosin/reitit #:mvn{:version "0.10.1"}
+        mvxcvi/clj-cbor #:mvn{:version "1.1.1"}
+        org.clojars.pntblnk/clj-ldap #:mvn{:version "0.0.17"}
+        org.clojure/clojure #:mvn{:version "1.12.0"}
+        org.clojure/core.match #:mvn{:version "1.1.0"}
+        org.clojure/test.check #:mvn{:version "1.1.3"}
+        org.clojure/tools.logging #:mvn{:version "1.3.0"}
+        org.xerial/sqlite-jdbc #:mvn{:version "3.47.1.0"}}
+ :paths ["src" "resources"]
+ :aliases
+ {:test {:extra-deps {lambdaisland/kaocha {:mvn/version "1.91.1392"}}
+         :extra-paths ["test"]
+         :main-opts ["-m" "kaocha.runner"]}
+  :dev {:extra-paths ["dev"]}}}
--- a/doerg/doerg-parser/README.org
+++ b/doerg/doerg-parser/README.org
--- a/doerg/doerg-parser/package.nix
+++ b/doerg/doerg-parser/package.nix
@@ -10,4 +10,5 @@ buildNpmPackage {
  npmDeps = importNpmLock { npmRoot = ./.; };
  npmConfigHook = importNpmLock.npmConfigHook;
  dontNpmBuild = true;
+  meta.mainProgram = "doerg-parser";
 }
--- a/doerg/doerg-parser/index.js
+++ b/doerg/doerg-parser/index.js
@@ -2,13 +2,17 @@

 const { parse } = require ("uniorg-parse/lib/parser.js");

+const opts = {
+    trackPosition: true
+}
+
 async function main () {
    const chunks = []
    for await (const chunk of process.stdin) {
 	chunks.push (chunk)
    }
    const orgText = Buffer.concat (chunks).toString ("utf8")
-    process.stdout.write (JSON.stringify (parse (orgText)))
+    process.stdout.write (JSON.stringify (parse (orgText, opts)))
 }

 main ()
--- a/doerg/doerg-parser/package-lock.json
+++ b/doerg/doerg-parser/package-lock.json
@@ -1,11 +1,17 @@
 {
  "name": "doerg-parser",
+  "version": "0.1.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
+      "name": "doerg-parser",
+      "version": "0.1.0",
      "dependencies": {
        "uniorg-parse": "^3.2.0"
+      },
+      "bin": {
+        "doerg-parser": "index.js"
      }
    },
    "node_modules/@types/unist": {
--- a/doerg/doerg-parser/package.json
+++ b/doerg/doerg-parser/package.json
--- a/doerg-temml-worker/README.org
+++ b/doerg-temml-worker/README.org
@@ -0,0 +1,12 @@
+#+title: doerg-temml-worker
+
+This is a tiny Node script that is used by doerg. For each CBOR-encoded value on stdin (a "command"), a response value is spit to stdout.
+
+Currently, the following commands are supported:
+- Any string: Return the Temml-rendered MathML code as a string (inline).
+- An array with a single string element: Return the Temml-rendered MathML code as a string (display).
+If something goes wrong, either of these commands may return an object of form
+#+begin_src json
+  {"type": "error"
+  ,"error": «error object»}
+#+end_src
--- a/doerg-temml-worker/default.nix
+++ b/doerg-temml-worker/default.nix
@@ -0,0 +1,22 @@
+{ buildNpmPackage
+, importNpmLock
+, makeWrapper
+, ibm-plex
+, callPackage
+}:
+
+buildNpmPackage {
+  pname = "doerg-temml-worker";
+  version = "0.1.0";
+  src =
+    builtins.filterSource
+      (name: _file-type: ! builtins.elem name [
+	"deserialise.clj" "deps.edn" "default.nix"
+	"README.org" "serialise.clj" "node_modules"
+      ])
+      ./.;
+  npmDeps = importNpmLock { npmRoot = ./.; };
+  npmConfigHook = importNpmLock.npmConfigHook;
+  dontNpmBuild = true;
+  meta.mainProgram = "doerg-temml-worker";
+}
--- a/doerg-temml-worker/index.js
+++ b/doerg-temml-worker/index.js
@@ -0,0 +1,55 @@
+#!/usr/bin/env node
+
+const commandLineArgs = require ("command-line-args")
+const temml = require ("temml")
+const fs = require ("node:fs")
+const path = require ("node:path")
+const { DecoderStream, EncoderStream } = require ("cbor-x")
+const { Transform } = require('node:stream')
+
+const cli_spec =
+      [ { name: "preamble" }
+      ]
+
+function load_preambles (preamble) {
+    const data = fs.readFileSync (preamble, "utf8") .toString ()
+    return temml.definePreamble (data)
+}
+
+let macros = {}
+
+function is_render_command (cmd) {
+    return cmd instanceof Array
+	       && cmd.length === 1
+	       && typeof cmd[0] === "string"
+}
+
+function do_command (cmd) {
+    try {
+	if (typeof cmd === "string") {
+	    return temml.renderToString (cmd, {macros})
+	} else if (is_render_command (cmd)) {
+	    return temml.renderToString (cmd[0], {displayMode: true,macros})
+	} else {
+	    return null
+	}
+    } catch (e) {
+	console.error (e)
+	return {type: "error", error: e}
+    }
+}
+
+function main () {
+    const options = commandLineArgs (cli_spec)
+    macros = load_preambles (options.preamble)
+    const decoder = new DecoderStream ()
+    const encoder = new EncoderStream ()
+    process.stdin.pipe (decoder)
+    const command_responses = decoder.map (do_command)
+    decoder
+	.map (do_command)
+	.pipe (encoder)
+	.pipe (process.stdout)
+}
+
+main ()
--- a/doerg-temml-worker/package-lock.json
+++ b/doerg-temml-worker/package-lock.json
@@ -0,0 +1,227 @@
+{
+  "name": "doerg-temml-worker",
+  "version": "0.1.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "doerg-temml-worker",
+      "version": "0.1.0",
+      "dependencies": {
+        "cbor-x": "^1.6.0",
+        "command-line-args": "^6.0.1",
+        "temml": "^0.13.1"
+      },
+      "bin": {
+        "doerg-temml-worker": "index.js"
+      }
+    },
+    "node_modules/@cbor-extract/cbor-extract-darwin-arm64": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@cbor-extract/cbor-extract-darwin-arm64/-/cbor-extract-darwin-arm64-2.2.0.tgz",
+      "integrity": "sha512-P7swiOAdF7aSi0H+tHtHtr6zrpF3aAq/W9FXx5HektRvLTM2O89xCyXF3pk7pLc7QpaY7AoaE8UowVf9QBdh3w==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@cbor-extract/cbor-extract-darwin-x64": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@cbor-extract/cbor-extract-darwin-x64/-/cbor-extract-darwin-x64-2.2.0.tgz",
+      "integrity": "sha512-1liF6fgowph0JxBbYnAS7ZlqNYLf000Qnj4KjqPNW4GViKrEql2MgZnAsExhY9LSy8dnvA4C0qHEBgPrll0z0w==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@cbor-extract/cbor-extract-linux-arm": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@cbor-extract/cbor-extract-linux-arm/-/cbor-extract-linux-arm-2.2.0.tgz",
+      "integrity": "sha512-QeBcBXk964zOytiedMPQNZr7sg0TNavZeuUCD6ON4vEOU/25+pLhNN6EDIKJ9VLTKaZ7K7EaAriyYQ1NQ05s/Q==",
+      "cpu": [
+        "arm"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@cbor-extract/cbor-extract-linux-arm64": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@cbor-extract/cbor-extract-linux-arm64/-/cbor-extract-linux-arm64-2.2.0.tgz",
+      "integrity": "sha512-rQvhNmDuhjTVXSPFLolmQ47/ydGOFXtbR7+wgkSY0bdOxCFept1hvg59uiLPT2fVDuJFuEy16EImo5tE2x3RsQ==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@cbor-extract/cbor-extract-linux-x64": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@cbor-extract/cbor-extract-linux-x64/-/cbor-extract-linux-x64-2.2.0.tgz",
+      "integrity": "sha512-cWLAWtT3kNLHSvP4RKDzSTX9o0wvQEEAj4SKvhWuOVZxiDAeQazr9A+PSiRILK1VYMLeDml89ohxCnUNQNQNCw==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@cbor-extract/cbor-extract-win32-x64": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@cbor-extract/cbor-extract-win32-x64/-/cbor-extract-win32-x64-2.2.0.tgz",
+      "integrity": "sha512-l2M+Z8DO2vbvADOBNLbbh9y5ST1RY5sqkWOg/58GkUPBYou/cuNZ68SGQ644f1CvZ8kcOxyZtw06+dxWHIoN/w==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ]
+    },
+    "node_modules/array-back": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/array-back/-/array-back-6.2.2.tgz",
+      "integrity": "sha512-gUAZ7HPyb4SJczXAMUXMGAvI976JoK3qEx9v1FTmeYuJj0IBiaKttG1ydtGKdkfqWkIkouke7nG8ufGy77+Cvw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.17"
+      }
+    },
+    "node_modules/cbor-extract": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/cbor-extract/-/cbor-extract-2.2.0.tgz",
+      "integrity": "sha512-Ig1zM66BjLfTXpNgKpvBePq271BPOvu8MR0Jl080yG7Jsl+wAZunfrwiwA+9ruzm/WEdIV5QF/bjDZTqyAIVHA==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "node-gyp-build-optional-packages": "5.1.1"
+      },
+      "bin": {
+        "download-cbor-prebuilds": "bin/download-prebuilds.js"
+      },
+      "optionalDependencies": {
+        "@cbor-extract/cbor-extract-darwin-arm64": "2.2.0",
+        "@cbor-extract/cbor-extract-darwin-x64": "2.2.0",
+        "@cbor-extract/cbor-extract-linux-arm": "2.2.0",
+        "@cbor-extract/cbor-extract-linux-arm64": "2.2.0",
+        "@cbor-extract/cbor-extract-linux-x64": "2.2.0",
+        "@cbor-extract/cbor-extract-win32-x64": "2.2.0"
+      }
+    },
+    "node_modules/cbor-x": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/cbor-x/-/cbor-x-1.6.0.tgz",
+      "integrity": "sha512-0kareyRwHSkL6ws5VXHEf8uY1liitysCVJjlmhaLG+IXLqhSaOO+t63coaso7yjwEzWZzLy8fJo06gZDVQM9Qg==",
+      "license": "MIT",
+      "optionalDependencies": {
+        "cbor-extract": "^2.2.0"
+      }
+    },
+    "node_modules/command-line-args": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/command-line-args/-/command-line-args-6.0.1.tgz",
+      "integrity": "sha512-Jr3eByUjqyK0qd8W0SGFW1nZwqCaNCtbXjRo2cRJC1OYxWl3MZ5t1US3jq+cO4sPavqgw4l9BMGX0CBe+trepg==",
+      "license": "MIT",
+      "dependencies": {
+        "array-back": "^6.2.2",
+        "find-replace": "^5.0.2",
+        "lodash.camelcase": "^4.3.0",
+        "typical": "^7.2.0"
+      },
+      "engines": {
+        "node": ">=12.20"
+      },
+      "peerDependencies": {
+        "@75lb/nature": "latest"
+      },
+      "peerDependenciesMeta": {
+        "@75lb/nature": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/detect-libc": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
+      "integrity": "sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==",
+      "license": "Apache-2.0",
+      "optional": true,
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/find-replace": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/find-replace/-/find-replace-5.0.2.tgz",
+      "integrity": "sha512-Y45BAiE3mz2QsrN2fb5QEtO4qb44NcS7en/0y9PEVsg351HsLeVclP8QPMH79Le9sH3rs5RSwJu99W0WPZO43Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=14"
+      },
+      "peerDependencies": {
+        "@75lb/nature": "latest"
+      },
+      "peerDependenciesMeta": {
+        "@75lb/nature": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/lodash.camelcase": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz",
+      "integrity": "sha512-TwuEnCnxbc3rAvhf/LbG7tJUDzhqXyFnv3dtzLOPgCG/hODL7WFnsbwktkD7yUV0RrreP/l1PALq/YSg6VvjlA==",
+      "license": "MIT"
+    },
+    "node_modules/node-gyp-build-optional-packages": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/node-gyp-build-optional-packages/-/node-gyp-build-optional-packages-5.1.1.tgz",
+      "integrity": "sha512-+P72GAjVAbTxjjwUmwjVrqrdZROD4nf8KgpBoDxqXXTiYZZt/ud60dE5yvCSr9lRO8e8yv6kgJIC0K0PfZFVQw==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "detect-libc": "^2.0.1"
+      },
+      "bin": {
+        "node-gyp-build-optional-packages": "bin.js",
+        "node-gyp-build-optional-packages-optional": "optional.js",
+        "node-gyp-build-optional-packages-test": "build-test.js"
+      }
+    },
+    "node_modules/temml": {
+      "version": "0.13.1",
+      "resolved": "https://registry.npmjs.org/temml/-/temml-0.13.1.tgz",
+      "integrity": "sha512-/fL1utq8QUD9YpcLeZHPRnp9Cbzbexq5hZl5uSBhf8mNYiKkcS4eYbLidDB+/nF8C+RHAcBQbKw2bKoS83mz1Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.13.0"
+      }
+    },
+    "node_modules/typical": {
+      "version": "7.3.0",
+      "resolved": "https://registry.npmjs.org/typical/-/typical-7.3.0.tgz",
+      "integrity": "sha512-ya4mg/30vm+DOWfBg4YK3j2WD6TWtRkCbasOJr40CseYENzCUby/7rIvXA99JGsQHeNxLbnXdyLLxKSv3tauFw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.17"
+      }
+    }
+  }
+}
--- a/doerg-temml-worker/package.json
+++ b/doerg-temml-worker/package.json
@@ -0,0 +1,6 @@
+{"dependencies":{"temml":"^0.13.1"
+		,"command-line-args":"^6.0.1"
+		,"cbor-x":"^1.6.0"}
+,"name":"doerg-temml-worker"
+,"version":"0.1.0"
+,"bin":{"doerg-temml-worker":"index.js"}}
--- a/doerg/README.org
+++ b/doerg/README.org
@@ -1,6 +0,0 @@
-#+title: Doerg specification
-#+author: Guppy
-
-* Footnotes
-
- A bunch of metadata should be read into a node of type =doerg-data=
--- a/doerg/deps-lock.json
+++ b/doerg/deps-lock.json
@@ -1,271 +0,0 @@
-{
-  "lock-version": 4,
-  "git-deps": [],
-  "mvn-deps": [
-    {
-      "mvn-path": "babashka/fs/0.5.24/fs-0.5.24.jar",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-owunNIWFqt6xNGhNV6vFs7GyYEz8z8wHRT7TSw1MDlU="
-    },
-    {
-      "mvn-path": "babashka/fs/0.5.24/fs-0.5.24.pom",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-E1jX6M3DeoTXVU6Vzd6xIpE0s9QAZpZALJl4nSKU8E8="
-    },
-    {
-      "mvn-path": "babashka/process/0.6.25/process-0.6.25.jar",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-XWTJ6kUgLD3/UJGe++Lf0+/Ja9SPViS50v33v3JOf4s="
-    },
-    {
-      "mvn-path": "babashka/process/0.6.25/process-0.6.25.pom",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-4bSR/Z0g4rXVwv2u6e9rkoL8d1nV5b9iNIs/U2o8l8Y="
-    },
-    {
-      "mvn-path": "cheshire/cheshire/6.1.0/cheshire-6.1.0.jar",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-ruCrbkSBlaoJXyLEKOINK8YQWRxUwQ7D4YPdOwgWOcI="
-    },
-    {
-      "mvn-path": "cheshire/cheshire/6.1.0/cheshire-6.1.0.pom",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-KKpi9U7eZ2YjAyQI14sMgqv91IiMfFagshIrg+Pad+M="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/core/jackson-core/2.20.0/jackson-core-2.20.0.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-vAz0YHWHcgH4QG7n3idBrn32wGb18EV72AYypxjAbnI="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/core/jackson-core/2.20.0/jackson-core-2.20.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-XxZVisIjBzpvJHRA8wX1nwXv9QqvHurguq1BKAABb2g="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/dataformat/jackson-dataformat-cbor/2.20.0/jackson-dataformat-cbor-2.20.0.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-qwdWFsvWf1Z2+Jgl7JyLx7VMhNvpNLFiFFs0FyNwtdY="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/dataformat/jackson-dataformat-cbor/2.20.0/jackson-dataformat-cbor-2.20.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-SYvwMYvqLnY2Wf0r/k8W8pHt8JNaMMnysKKP7jrXz8c="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/dataformat/jackson-dataformat-smile/2.20.0/jackson-dataformat-smile-2.20.0.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-NFwALLesnlQ0Go8ExWoR3CGUVCbqg5n/VuAvuOkSpm4="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/dataformat/jackson-dataformat-smile/2.20.0/jackson-dataformat-smile-2.20.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-IM1JgnnQUcaQMkt6R1+Ee/wQoAcQS6uc371ga1sFhDk="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/dataformat/jackson-dataformats-binary/2.20.0/jackson-dataformats-binary-2.20.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-ZJ/OQKV9Qhx82erCP919XPbzwdG5NAbuJ3xFw1Mm5Yg="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/jackson-base/2.20.0/jackson-base-2.20.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-/IgCjRnuqjftpZbmuY03SfIs/IrdGeoZdFq+g2iDzmY="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/jackson-bom/2.20.0/jackson-bom-2.20.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-9ig2R+cB/aHNMS3MIcsTKkD3mPGejkL6/D/jR8WlG7s="
-    },
-    {
-      "mvn-path": "com/fasterxml/jackson/jackson-parent/2.20/jackson-parent-2.20.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-tDt/XGLoaxZPrnCuF9aRHF22B5mvAQVzYK/aguSEW+U="
-    },
-    {
-      "mvn-path": "com/fasterxml/oss-parent/70/oss-parent-70.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-JsqO1vgsnS7XzTIpgQW7ZcD52JnbYXV6CXQVhvqTpjk="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.10.3/clojure-1.10.3.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-fxJHLa7Y9rUXSYqqKrE6ViR1w+31FHjkWBzHYemJeaM="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.10.3/clojure-1.10.3.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-GJwAxDNAdJai+7DsyzeQjJSVXZHq0b5IFWdE7MGBbZQ="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.0/clojure-1.11.0.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-PiH6daB+yd278bK1A1bPGAcQ0DmN6qT0TpHNYwRVWUc="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.0/clojure-1.11.0.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-SQjMS0yeYsmoFJb5PLWsb2lBd8xkXc87jOXkkavOHro="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.1/clojure-1.11.1.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-I4G26UI6tGUVFFWUSQPROlYkPWAGuRlK/Bv0+HEMtN4="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.1/clojure-1.11.1.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-IMRaGr7b2L4grvk2BQrjGgjBZ0CzL4dAuIOM3pb/y4o="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.2/clojure-1.11.2.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-iPqZkT1pIs+39kn1xGdQOHfLb8yMwW02948mSAhLqZc="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.2/clojure-1.11.2.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-FzbP/xCV4dT+/raogrut9ttB7+MV8pbw/aMtt//EExE="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.3/clojure-1.11.3.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-nDBUCTKOK5boXdK160t1gQxnt2unCuTQ9t3pvPtVsbc="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.3/clojure-1.11.3.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-DA2+Ge4NKpxXMQzr3dNWRD8NFlFMQmBHsGLjpXwNuK0="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.4/clojure-1.11.4.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-/H/xtmENDjSUp1zBHvgYEL2kAqwVcBL+TjuJlYbPQTM="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.11.4/clojure-1.11.4.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-a6YADmhI+Cw5y5tJqyqmo6Vi9MJNUrMeUZCuZJXwwwk="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.12.0/clojure-1.12.0.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-xFMzAGRBoFnqn9sTQfxsH0C5IaENzNgmZTEeSKA4R2M="
-    },
-    {
-      "mvn-path": "org/clojure/clojure/1.12.0/clojure-1.12.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-KfRiqonLl2RXWEGKXwjUwagrc1yW569JgX0WqpuQgVA="
-    },
-    {
-      "mvn-path": "org/clojure/core.match/1.1.0/core.match-1.1.0.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-10V6tjEIWae9cTmEM4IEX6PN7A0T97qSEpfy8/uZj1M="
-    },
-    {
-      "mvn-path": "org/clojure/core.match/1.1.0/core.match-1.1.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-NnHYN2UlIwq6Ah8fYmx54g86ELYrXfgXIiWJDsSv4EU="
-    },
-    {
-      "mvn-path": "org/clojure/core.specs.alpha/0.2.56/core.specs.alpha-0.2.56.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-/PRCveArBKhj8vzFjuaiowxM8Mlw99q4VjTwq3ERZrY="
-    },
-    {
-      "mvn-path": "org/clojure/core.specs.alpha/0.2.56/core.specs.alpha-0.2.56.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-AarxdIP/HHSCySoHKV1+e8bjszIt9EsptXONAg/wB0A="
-    },
-    {
-      "mvn-path": "org/clojure/core.specs.alpha/0.2.62/core.specs.alpha-0.2.62.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-Bu6owHC75FwVhWfkQ0OWgbyMRukSNBT4G/oyukLWy8g="
-    },
-    {
-      "mvn-path": "org/clojure/core.specs.alpha/0.2.62/core.specs.alpha-0.2.62.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-F3i70Ti9GFkLgFS+nZGdG+toCfhbduXGKFtn1Ad9MA4="
-    },
-    {
-      "mvn-path": "org/clojure/core.specs.alpha/0.4.74/core.specs.alpha-0.4.74.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-63OsCM9JuoQMiLpnvu8RM2ylVDM9lAiAjXiUbg/rnds="
-    },
-    {
-      "mvn-path": "org/clojure/core.specs.alpha/0.4.74/core.specs.alpha-0.4.74.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-M0EOuKpz1S2Vez3G4KZfOZisBiPL2BPZDDPm5onEJCk="
-    },
-    {
-      "mvn-path": "org/clojure/pom.contrib/0.3.0/pom.contrib-0.3.0.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-fxgrOypUPgV0YL+T/8XpzvasUn3xoTdqfZki6+ee8Rk="
-    },
-    {
-      "mvn-path": "org/clojure/pom.contrib/1.1.0/pom.contrib-1.1.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-EOzku1+YKQENwWVh9C67g7ry9HYFtR+RBbkvPKoIlxU="
-    },
-    {
-      "mvn-path": "org/clojure/pom.contrib/1.2.0/pom.contrib-1.2.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-CRbXpBVYuVAKQnyIb6KYJ6zlJZIGvjrTPmTilvwaYRE="
-    },
-    {
-      "mvn-path": "org/clojure/spec.alpha/0.2.194/spec.alpha-0.2.194.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-z2iZ+YUpjGSxPqEplGrZAo3uja3w6rmuGORVAn04JJw="
-    },
-    {
-      "mvn-path": "org/clojure/spec.alpha/0.2.194/spec.alpha-0.2.194.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-WhHw4eizwFLmUcSYxpRbRNs1Nb8sGHGf3PZd8fiLE+Y="
-    },
-    {
-      "mvn-path": "org/clojure/spec.alpha/0.3.218/spec.alpha-0.3.218.jar",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-Z+yJjrVcZqlXpVJ53YXRN2u5lL2HZosrDeHrO5foquA="
-    },
-    {
-      "mvn-path": "org/clojure/spec.alpha/0.3.218/spec.alpha-0.3.218.pom",
-      "mvn-repo": "https://repo.maven.apache.org/maven2/",
-      "hash": "sha256-bY3hTDrIdXYMX/kJVi/5hzB3AxxquTnxyxOeFp/pB1g="
-    },
-    {
-      "mvn-path": "org/clojure/spec.alpha/0.5.238/spec.alpha-0.5.238.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-lM2ZtupjlkHzevSGCmQ7btOZ7lqL5dcXz/C2Y8jXUHc="
-    },
-    {
-      "mvn-path": "org/clojure/spec.alpha/0.5.238/spec.alpha-0.5.238.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-PLp+DcwIXEzpLd3/6iJhJP+sF4vnm9A3m1suMKlpy+o="
-    },
-    {
-      "mvn-path": "org/clojure/tools.logging/1.3.0/tools.logging-1.3.0.jar",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-gmlpt42a2jJ95rfaDxdkV9lWFPo4woAyZhDzGmtRXJE="
-    },
-    {
-      "mvn-path": "org/clojure/tools.logging/1.3.0/tools.logging-1.3.0.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-E15H98p5wKoYG2kJPML50aYyKt1qgli2aXxQCNIwv00="
-    },
-    {
-      "mvn-path": "org/junit/junit-bom/5.13.4/junit-bom-5.13.4.pom",
-      "mvn-repo": "https://repo1.maven.org/maven2/",
-      "hash": "sha256-16CKmbJQLwu2jNTh+YTwv2kySqogi9D3M2bAP8NUikI="
-    },
-    {
-      "mvn-path": "tigris/tigris/0.1.2/tigris-0.1.2.jar",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-SapkjttsFOVwlaEbOR6u5gZXgyP7eXVfkjMaxjAPl6A="
-    },
-    {
-      "mvn-path": "tigris/tigris/0.1.2/tigris-0.1.2.pom",
-      "mvn-repo": "https://repo.clojars.org/",
-      "hash": "sha256-H9VZA1l1INzUrnbmoz7/XjWmFUIrutKo7ZrDMqr75KA="
-    }
-  ]
-}
--- a/doerg/deps.edn
+++ b/doerg/deps.edn
@@ -1,11 +0,0 @@
-{:deps {org.clojure/tools.logging {:mvn/version "1.3.0"}
-        babashka/fs {:mvn/version "0.5.24"}
-        org.clojure/core.match {:mvn/version "1.1.0"}
-        cheshire/cheshire {:mvn/version "6.1.0"}
-        babashka/process {:mvn/version "0.6.25"}
-        io.github.msyds/spec-dict
-        {:git/sha "531d629b7f05f37232261cf9e8927a4b5915714f"}
-        hiccup/hiccup {:mvn/version "2.0.0-RC4"}
-        com.rpl/specter {:mvn/version "1.1.6"}
-        lambdaisland/deep-diff2 {:mvn/version "2.12.219"}}
- :paths ["src" "resources" "test"]}
--- a/doerg/package.nix
+++ b/doerg/package.nix
@@ -1,34 +0,0 @@
-{ mkCljBin
-, callPackage
-, doerg-parser
-, ibm-plex-web
-, fake-git
-}:
-
-let
-  # mkCljBin sans fake-git.
-  mkCljBin' = args: (mkCljBin args).overrideAttrs (final: prev: {
-    nativeBuildInputs =
-      builtins.filter
-	# A possibly-sketchy predicate, lol.
-	(x: x != fake-git)
-	prev.nativeBuildInputs;
-  });
-
-  plex = ibm-plex-web.override {
-    families = [ "math" "serif" "sans" "sans-kr" ];
-  };
-in mkCljBin' {
-  name = "net.deertopia/doerg";
-  version = "0.1.0";
-  projectSrc = ./.;
-  lockfile = ../deps-lock.json;
-  main-ns = "net.deertopia.doerg.main";
-  nativeBuildInputs = [
-    plex
-  ];
-  buildInputs = [
-    doerg-parser
-    plex
-  ];
-}
--- a/doerg/src/net/deertopia/doerg/config.clj
+++ b/doerg/src/net/deertopia/doerg/config.clj
@@ -1,19 +0,0 @@
-(ns net.deertopia.doerg.config
-  (:require [clojure.spec.alpha :as s]
-            [babashka.fs :as fs]
-            [spec-dict.main :refer [dict]]))
-
-(s/def ::config
-  (s/keys :req [::ibm-plex-web]))
-
-(def default
-  {::ibm-plex-web
-   (fs/file
-    (or (System/getenv "IBM_PLEX_WEB")
-        (some #(let [x (fs/path % "ibm-plex-web")]
-                 (and (fs/exists? x) x))
-              (fs/split-paths (System/getenv "XDG_DATA_DIRS")))))})
-
-(def ^:dynamic *cfg* default)
-
-(s/def ::ibm-plex-web string?)
--- a/doerg/src/net/deertopia/doerg/repl.clj
+++ b/doerg/src/net/deertopia/doerg/repl.clj
@@ -1,39 +0,0 @@
-(ns net.deertopia.doerg.repl
-  (:require [net.deertopia.doerg.element :as element]
-            [net.deertopia.doerg.render :as render]
-            [net.deertopia.doerg.config :as cfg]
-            [clojure.java.io :as io]
-            [hiccup2.core :as h]
-            [clojure.pprint]
-            [babashka.fs :as fs]))
-
-(def some-org-file
-  #_
-  "/home/msyds/org/20251228003307-prerequisite_context_in_korean.org"
-  "/home/msyds/org/20251111182118-path_induction.org")
-
-(defn- force-create-sym-link [path target]
-  (fs/delete-if-exists path)
-  (fs/create-sym-link path target))
-
-(defn render-html [& {:keys [src dest]
-                      :or {src some-org-file
-                           dest "/tmp/doerg-test"}}]
-  (fs/create-dirs dest)
-  (force-create-sym-link (fs/file dest "ibm-plex-web")
-                         (-> cfg/*cfg* ::cfg/ibm-plex-web))
-  (force-create-sym-link (fs/file dest "deerstar.css")
-                         (io/resource "net/deertopia/doerg/deerstar.css"))
-  (force-create-sym-link (fs/file dest "tuftesque.css")
-                         (io/resource "net/deertopia/doerg/tuftesque.css"))
-  (fs/delete-if-exists (fs/file dest "index.html"))
-  (->> (h/html (-> src slurp element/read-string render/org-document))
-       str (spit (fs/file dest "index.html"))))
-
-(defn render-edn [& {:keys [src dest]
-                     :or {src some-org-file
-                          dest "/tmp/doerg-test/index.edn"}}]
-  (fs/create-dirs (fs/parent dest))
-  (with-open [f (io/writer dest)]
-    (binding [*out* f]
-      (-> src slurp element/read-string clojure.pprint/pprint))))
--- a/doerg/test/net/deertopia/doerg/config_test.clj
+++ b/doerg/test/net/deertopia/doerg/config_test.clj
@@ -1,8 +0,0 @@
-(ns net.deertopia.doerg.config-test
-  (:require [net.deertopia.doerg.config :as sut]
-            [clojure.test :as t]
-            [clojure.spec.alpha :as s]))
-
-(t/deftest default-config-is-config
-  (t/testing "default config is valid"
-    (t/is (s/valid? ::sut/config sut/default))))
--- a/doerg/test/net/deertopia/doerg/element_test.clj
+++ b/doerg/test/net/deertopia/doerg/element_test.clj
@@ -1,79 +0,0 @@
-(ns net.deertopia.doerg.element-test
-  (:require [net.deertopia.doerg.element :as sut]
-            [babashka.process :as p]
-            [clojure.test :as t]
-            [clojure.zip :as z]
-            [clojure.java.io :as io]
-            [com.rpl.specter :as sp]))
-
-(defn sleep-vs-timeout [& {:keys [sleep timeout]}]
-  (sut/deref-with-timeout
-   (p/process "sleep" (format "%ds" sleep))
-   (* timeout 1000)))
-
-;; Ideally we would test the following property:
-;;
-;;   For natural numbers n and m, evaluating the form
-;;     (sut/deref-with-timeout
-;;       (p/process "sleep" (format "%ds" n))
-;;       (* m 1000))
-;;   will throw an exception iff n < m (probably with some margin of
-;;   error lol).
-;;
-;; But, this is not something that we want to run dozens-to-hundreds
-;; of times. }:p
-
-(t/deftest long-sleep-vs-short-timeout
-  (t/testing "long sleep vs. short timeout"
-    (t/is (thrown-with-msg?
-           Exception #".*timed out.*"
-           (sleep-vs-timeout :sleep 5 :timeout 1)))))
-
-(t/deftest short-sleep-vs-long-timeout
-  (t/testing "short sleep vs. long timeout"
-    (t/is (instance? babashka.process.Process
-                     (sleep-vs-timeout :sleep 1 :timeout 5)))))
-
-(defn- first-child-of-type [parent type]
-  (some #(and (sut/of-type? % type) %) (:children parent)))
-
-(defn- parse-resource [path]
-  (-> (str "net/deertopia/doerg/element_test/" path)
-      io/resource slurp sut/read-string))
-
-(t/deftest known-greater-elements
-  (t/testing "known greater elements satisfy `greater-element?`"
-    (let [root (parse-resource "greater-elements.org")
-          section (->> root
-                       (sp/select [sut/children-walker
-                                   #(sut/of-type? % "section")])
-                       second)
-          headline (first-child-of-type section "headline")
-          headline-text (first-child-of-type headline "text")
-          paragraph (first-child-of-type section "paragraph")
-          paragraph-text (first-child-of-type paragraph "text")]
-      (t/is (sut/greater-element? root))
-      (t/is (sut/greater-element? section))
-      (t/is (sut/greater-element? headline))
-      (t/is (not (sut/greater-element? headline-text)))
-      (t/is (sut/greater-element? paragraph))
-      (t/is (not (sut/greater-element? paragraph-text))))))
-
-(defn- first-paragraph-belongs-to-first-section? [doc]
-  (let [first-paragraph (sp/select-first [sut/postorder-walker
-                                          #(sut/of-type? % "paragraph")]
-                                         doc)
-        first-section (sp/select-first [sut/postorder-walker
-                                        #(sut/of-type? % "section")]
-                                       doc)]
-    (if (and first-paragraph first-section)
-      (boolean (some #(= % first-paragraph)
-                     (:children first-section)))
-      true)))
-
-(t/deftest first-paragraph-under-first-section
-  (t/testing "first paragraph should belong to a section"
-    (t/is (-> (parse-resource "first-paragraph-under-first-section.org")
-              first-paragraph-belongs-to-first-section?))
-    (t/is (not (-> (parse-resource "first-paragraph-under-heading.org")
-                   first-paragraph-belongs-to-first-section?)))))
--- a/flake.lock
+++ b/flake.lock
@@ -59,24 +59,6 @@
        "type": "github"
      }
    },
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
    "nix-fetcher-data": {
      "inputs": {
        "flake-parts": "flake-parts",
@@ -129,11 +111,11 @@
    },
    "nixpkgs_2": {
      "locked": {
-        "lastModified": 1760038930,
-        "narHash": "sha256-Oncbh0UmHjSlxO7ErQDM3KM0A5/Znfofj2BSzlHLeVw=",
+        "lastModified": 1774386573,
+        "narHash": "sha256-4hAV26quOxdC6iyG7kYaZcM3VOskcPUrdCQd/nx8obc=",
        "owner": "NixOS",
        "repo": "nixpkgs",
-        "rev": "0b4defa2584313f3b781240b29d61f6f9f7e0df3",
+        "rev": "46db2e09e1d3f113a13c0d7b81e2f221c63b8ce9",
        "type": "github"
      },
      "original": {
@@ -143,25 +125,44 @@
        "type": "github"
      }
    },
-    "root": {
-      "inputs": {
-        "clj-nix": "clj-nix",
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
-      }
-    },
-    "systems": {
+    "nixpkgs_3": {
      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "lastModified": 1750386251,
+        "narHash": "sha256-1ovgdmuDYVo5OUC5NzdF+V4zx2uT8RtsgZahxidBTyw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "076e8c6678d8c54204abcb4b1b14c366835a58bb",
        "type": "github"
      },
      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "clj-nix": "clj-nix",
+        "nixpkgs": "nixpkgs_2",
+        "sydpkgs": "sydpkgs"
+      }
+    },
+    "sydpkgs": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1767975357,
+        "narHash": "sha256-MDVh3/aVhkD1bh/r8c0gs9DL4e78CrUbUxOZHWlCwLM=",
+        "owner": "msyds",
+        "repo": "sydpkgs",
+        "rev": "233479ab277d47b1dbda202eafca50e61c659151",
+        "type": "github"
+      },
+      "original": {
+        "owner": "msyds",
+        "repo": "sydpkgs",
        "type": "github"
      }
    }
--- a/flake.nix
+++ b/flake.nix
@@ -1,9 +1,8 @@
 {
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-utils.url = "github:numtide/flake-utils";
    clj-nix.url = "github:jlesquembre/clj-nix";
-    # clj-nix.url = "path:///home/msyds/git/clj-nix";
+    sydpkgs.url = "github:msyds/sydpkgs";
  };

  outputs = { self, nixpkgs, clj-nix, ... }@inputs:
@@ -16,14 +15,15 @@
      ];

      each-system = f: nixpkgs.lib.genAttrs supportedSystems (system: f rec {
-	pkgs = import nixpkgs {
-	  inherit system;
-	  overlays = [
-	    clj-nix.overlays.default
-	    self.overlays.default
-	  ];
-	};
-	inherit (pkgs) lib;
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [
+            inputs.sydpkgs.overlays.default
+            clj-nix.overlays.default
+            self.overlays.default
+          ];
+        };
+        inherit (pkgs) lib;
        inherit system;
      });
    in {
@@ -31,42 +31,45 @@
      _pkgs = each-system ({ pkgs, ... }: pkgs);

      packages = each-system ({ pkgs, ... }: {
-	inherit (pkgs) publisher doerg doerg-parser;
-	default = pkgs.publisher;
+        inherit (pkgs) doerg doerg-parser doerg-temml-worker;
+        default = pkgs.doerg;
      });

      overlays.default = final: prev:
        let graal = x: final.mkGraalBin { cljDrv = x; };
-	    vendored = final.callPackage ./vendor {};
-	in {
-	  inherit (vendored) ibm-plex-web;
-	  publisher = final.callPackage ./publisher/package.nix {};
-	  doerg = final.callPackage ./doerg/package.nix {};
-	  doerg-parser = final.callPackage ./doerg/doerg-parser/package.nix {};
-	};
+        in {
+          ibm-plex-web = final.callPackage ./ibm-plex-web.nix {};
+          doerg = final.callPackage ./. {};
+          doerg-parser = final.callPackage ./doerg-parser {};
+          doerg-temml-worker = final.callPackage ./doerg-temml-worker {};
+          our-tex = final.callPackage ./our-tex.nix {};
+        };

      checks = each-system ({ pkgs, system, ... }: {
-	packages =
-	  pkgs.linkFarmFromDrvs
-	    "all"
-	    (pkgs.lib.attrValues self.packages.${system});
+        build-all =
+          pkgs.linkFarmFromDrvs
+            "all"
+            (pkgs.lib.attrValues self.packages.${system});
      });

      devShells = each-system ({ pkgs, system, ... }: {
-	default = pkgs.mkShell {
-	  inputsFrom = [ pkgs.doerg ];
-	  packages = with pkgs; [
-	    clojure-lsp
-	    doerg-parser
-	    # wahhh ibm-plex-web is a dependency of doerg... why must
-	    # i specify it hereeee.
-	    # ibm-plex-web
-	    zprint
-	    clojure
-	    babashka
-	    sqlite-web
-	  ];
-	};
+        default = pkgs.mkShell {
+          inputsFrom = [
+            pkgs.doerg
+            pkgs.doerg-parser
+            pkgs.doerg-temml-worker
+          ];
+          packages = with pkgs; [
+            clojure-lsp
+            doerg-parser
+            doerg-temml-worker
+            zprint
+            clojure
+            babashka
+            sqlite-web
+            pkgs.doerg.test-emacs
+          ];
+        };
      });
    };
 }
--- a/vendor/ibm-plex-web.nix
+++ b/vendor/ibm-plex-web.nix
--- a/our-tex.nix
+++ b/our-tex.nix
@@ -0,0 +1,44 @@
+{ texlive
+, syd-plex-latex
+}:
+
+texlive.combine {
+  inherit syd-plex-latex;
+  inherit (texlive)
+    scheme-basic
+    xkeyval
+    changepage
+    fancyhdr
+    geometry
+    natbib
+    paralist
+    placeins
+    ragged2e
+    setspace
+    textcase
+    titlesec
+    xcolor
+    hardwrap
+    xifthen
+    catchfile
+    fontspec
+    latexmk
+    xetex
+    dvisvgm dvipng wrapfig # For Org-mode previews/export.
+    amsmath # Essential for mathematics.
+    spath3 # TikZ dependency?
+    ulem hyperref
+    capt-of
+    pgf # Includes TikZ.
+    tikz-cd # Commutative diagrams w/ TikZ.
+    quiver # Commutative diagrams w/ TikZ & q.uiver.app.
+    bookmark
+    metafont
+    preview # For new-gen org-latex-preview.
+    mylatexformat # For new-gen org-latex-preview.
+    collection-fontsrecommended # Essential fonts.
+    etoolbox # For Org-mode exports.
+    caption
+    standalone
+  ;
+}
--- a/publisher/.dir-locals.el
+++ b/publisher/.dir-locals.el
@@ -1,11 +0,0 @@
-((nil
-  . ((cider-clojure-cli-aliases . ":dev")
-     (eval
-      . (progn
-          (defun start-deertopia-server ()
-	    (let ((n (cider-format-connection-params "%j" cider-launch-params)))
-	      (when (equal n "net-deertopia")
-		(cider-interactive-eval
-		 "(do (require '[net.deertopia.publisher.server :as server])
-                      (server/start!))"))))
-          (add-hook 'cider-connected-hook #'start-deertopia-server))))))
--- a/publisher/deps.edn
+++ b/publisher/deps.edn
@@ -1,23 +0,0 @@
-{:deps {org.clojure/clojure {:mvn/version "1.12.0"}
-        http-kit/http-kit {:mvn/version "2.8.0"}
-        org.clojure/tools.logging {:mvn/version "1.3.0"}
-        hiccup/hiccup {:mvn/version "2.0.0-RC4"}
-        compojure/compojure {:mvn/version "1.7.1"}
-        org.clojars.pntblnk/clj-ldap {:mvn/version "0.0.17"}
-        ring/ring-defaults {:mvn/version "0.6.0"}
-        babashka/fs {:mvn/version "0.5.24"}
-        org.clojure/core.match {:mvn/version "1.1.0"}
-        com.github.seancorfield/next.jdbc {:mvn/version "1.3.1070"}
-        org.xerial/sqlite-jdbc {:mvn/version "3.47.1.0"}
-        cheshire/cheshire {:mvn/version "6.1.0"}
-        instaparse/instaparse {:mvn/version "1.5.0"}
-        babashka/process {:mvn/version "0.6.25"}
-        org.clojure/test.check {:mvn/version "1.1.2"}
-        #_#_
-        io.github.msyds/spec-dict
-        {:git/sha "531d629b7f05f37232261cf9e8927a4b5915714f"}
-        net.deertopia/doerg {:local/root "../doerg"}}
- :paths ["src" "resources" "test"]
- :aliases
- {:dev
-  {:extra-deps {vvvvalvalval/scope-capture-nrepl {:mvn/version "0.3.1"}}}}}
--- a/publisher/override_deps.bb
+++ b/publisher/override_deps.bb
@@ -1,53 +0,0 @@
-;;; -*- mode:clojure -*-
-;;;
-;;; USAGE:
-;;;
-;;;   bb -cp . -m override-deps -- [DEP-NAME INFO]…
-;;;
-;;; This script takes a series of deps substitutions on the command
-;;; line, applies them to a deps.edn file (read on stdin), and spits
-;;; the result to stdout.
-;;;
-;;; It is used to build the Doerg server with Nix, since Clj-nix does
-;;; not resolve the local deps itself.
-
-(ns override-deps
-  (:require [rewrite-clj.zip :as z]
-            [babashka.fs :as fs]
-            [clojure.edn :as edn]))
-
-(defn apply-overrides [zloc overrides]
-  (loop [os (seq overrides)
-         loc zloc]
-    (if-some [[[k v] & xs] os]
-      (recur xs (z/assoc loc k v))
-      loc)))
-
-(defn args->overrides [args]
-  (assert (even? (count args)))
-  (->> args (map edn/read-string) (apply hash-map)))
-
-(defn -main [& args]
-  (let [zloc (-> (slurp *in*) z/of-string)
-        overrides (args->overrides args)]
-    (-> zloc
-        z/down
-        (z/find-value :deps) z/right
-        (apply-overrides overrides)
-        z/root-string
-        print)))
-
-
-
-(comment
-  "Example overrides"
-  (def overrides '{net.deertopia/doerg "blah!!!!"
-                   ring/ring-defaults {:mvn/version "xxxxx"}}))
-
-(comment
-  "Behaviour of `args->overrides`."
-  (= (args->overrides ["net.deertopia/doerg" "{:mvn/version \"abc\"}"
-                       "ring/ring-defaults" "{:local/root \"/path/to/jar\"}"])
-     '{ring/ring-defaults {:local/root "/path/to/jar"}
-       net.deertopia/doerg {:mvn/version "abc"}}))
-
--- a/publisher/package.nix
+++ b/publisher/package.nix
@@ -1,21 +0,0 @@
-{ mkCljBin
-, doerg
-, babashka
-}:
-
-mkCljBin {
-  name = "net.deertopia/publisher";
-  version = "0.1.0";
-  projectSrc = ./.;
-  lockfile = ../deps-lock.json;
-  main-ns = "net.deertopia.publisher.main";
-  buildInputs = [];
-  nativeBuildInputs = [
-    babashka
-  ];
-  postPatch = ''
-    mv deps.edn deps.edn.old
-    bb -cp . -m override-deps < deps.edn.old > deps.edn \
-      net.deertopia/doerg '{:local/root "${doerg.lib}/${doerg.name}.jar"}'
-  '';
-}
--- a/publisher/src/net/deertopia/publisher/main.clj
+++ b/publisher/src/net/deertopia/publisher/main.clj
@@ -1,7 +0,0 @@
-(ns net.deertopia.publisher.main
-  (:require [net.deertopia.doerg.main :as doerg])
-  (:gen-class))
-
-(defn -main []
-  (doerg/-main)
-  (println "hi from publisher"))
--- a/publisher/vendor.nix
+++ b/publisher/vendor.nix
@@ -1,25 +0,0 @@
-{ fetchzip
-, fetchurl
-}:
-
-{
-  ibm-plex-serif = fetchzip {
-    url = "https://github.com/IBM/plex/releases/download/%40ibm%2Fplex-serif%401.1.0/ibm-plex-serif.zip";
-    hash = "sha256-8ygaAeMKygYS4GCub4YUQmkh87pYHfi3s0PQ6AbaeGw=";
-  };
-
-  ibm-plex-math = fetchzip {
-    url = "https://github.com/IBM/plex/releases/download/%40ibm%2Fplex-math%401.1.0/ibm-plex-math.zip";
-    hash = "sha256-dJA6uqxa/yb3eLY4l39NeP0yIl2NfrbaRpf6h0/F7Xc=";
-  };
-
-  ibm-plex-sans-kr = fetchzip {
-    url = "https://github.com/IBM/plex/releases/download/%40ibm%2Fplex-sans-kr%401.1.0/ibm-plex-sans-kr.zip";
-    hash = "sha256-FsHxMvLlI4yylgG96DOZIdW2DYpk7I+c5QgkVIkNZIE=";
-  };
-
-  "d3.v7.min.js" = fetchurl {
-    url = "https://d3js.org/d3.v7.min.js";
-    hash = "sha256-8glLv2FBs1lyLE/kVOtsSw8OQswQzHr5IfwVj864ZTk=";
-  };
-}
--- a/resources/net/deertopia/doerg/Temml-Plex.css
+++ b/resources/net/deertopia/doerg/Temml-Plex.css
@@ -0,0 +1,343 @@
+/* Based on Temml-local.css. */
+math {
+  font-family: "IBM Plex Math", "Cambria Math", 'STIXTwoMath-Regular', 'NotoSansMath-Regular', math;
+  font-style: normal;
+  font-weight: normal;
+  line-height: normal;
+  font-size-adjust: none;
+  text-indent: 0;
+  text-transform: none;
+  letter-spacing: normal;
+  word-wrap: normal;
+  direction: ltr;
+  /* Prevent Firefox from omitting the dot on i or j. */
+  font-feature-settings: "dtls" off;
+}
+
+math * {
+  border-color: currentColor;
+}
+
+/* display: block is necessary in Firefox and Safari.
+ * Not in Chromium, which recognizes display: "block math" written inline. */
+ math.tml-display {
+  display: block;
+  width: 100%;
+}
+
+*.mathcal {
+  /* NotoSans */
+  font-feature-settings: 'ss01';
+}
+
+math .mathscr {
+  font-family: "IBM Plex Math";
+}
+
+mo.tml-prime {
+  font-family: "IBM Plex Math";
+}
+
+/* Cramped superscripts in WebKit */
+mfrac > :nth-child(2),
+msqrt,
+mover > :first-child {
+  math-shift: compact
+}
+
+.menclose {
+  display: inline-block;
+  position: relative;
+  padding: 0.5ex 0ex;
+}
+.tml-cancelto {
+  display: inline-block;
+  position: absolute;
+  top: 0;
+  left: 0;
+  padding: 0.5ex 0ex;
+  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'><defs><marker id='a' markerHeight='5' markerUnits='strokeWidth' markerWidth='7' orient='auto' refX='7' refY='2.5'><path fill='currentColor' d='m0 0 7 2.5L0 5z'/></marker></defs><line x2='100%' y1='100%' stroke='currentColor' stroke-width='.06em' marker-end='url(%23a)' vector-effect='non-scaling-stroke'/></svg>");
+}
+
+@supports (-moz-appearance: none) {
+  /* \vec w/o italic correction for Firefox */
+  .tml-vec {
+    transform: scale(0.75)
+  }
+  /* Fix \cancelto in Firefox */
+  .ff-narrow {
+    width: 0em;
+  }
+  .ff-nudge-left {
+    margin-left: -0.2em;
+  }
+}
+
+@supports (not (-moz-appearance: none)) {
+  /* Chromium and WebKit */
+  /* prime vertical alignment */
+  mo.tml-prime {
+  font-family: "IBM Plex Math";
+  }
+  /* Italic correction on superscripts */
+  .tml-sml-pad {
+    padding-left: 0.05em;
+  }
+  .tml-med-pad {
+    padding-left: 0.10em;
+  }
+  .tml-lrg-pad {
+    padding-left: 0.15em;
+  }
+}
+
+@supports (-webkit-backdrop-filter: blur(1px)) {
+  /* WebKit vertical & italic correction on accents */
+  .wbk-acc {
+    /* lower by x-height distance */
+    transform: translate(0em, 0.431em);
+  }
+  .wbk-sml {
+    transform: translate(0.07em, 0);
+  }
+  .wbk-sml-acc {
+    transform: translate(0.07em, 0.431em);
+  }
+  .wbk-sml-vec {
+    transform: scale(0.75) translate(0.07em, 0);
+  }
+  .wbk-med {
+    transform: translate(0.14em, 0);
+  }
+  .wbk-med-acc {
+    transform: translate(0.14em, 0.431em);
+  }
+  .wbk-med-vec {
+    transform: scale(0.75) translate(0.14em, 0);
+  }
+  .wbk-lrg {
+    transform: translate(0.21em, 0);
+  }
+  .wbk-lrg-acc {
+    transform: translate(0.21em, 0.431em);
+  }
+  .wbk-lrg-vec {
+    transform: scale(0.75) translate(0.21em, 0);
+  }
+}
+
+/* \cancel & \phase use background images. Get them to print. */
+menclose {
+  -webkit-print-color-adjust: exact;  /* Chrome & Edge */
+          print-color-adjust: exact;
+}
+
+/* Array cell justification in Firefox & WebKit */
+.tml-right {
+  text-align: right;
+}
+.tml-left {
+  text-align: left;
+}
+
+/* For CD labels that grow to the left in Firefox and WebKit */
+.tml-shift-left { margin-left:-200% }
+
+/* Styles for Chromium only */
+@supports (not (-webkit-backdrop-filter: blur(1px))) and (not (-moz-appearance: none)) {
+  /* Italic correction on accents */
+  .chr-sml {
+    transform: translate(0.07em, 0)
+  }
+  .chr-sml-vec {
+    transform: scale(0.75) translate(0.07em, 0)
+  }
+  .chr-med {
+    transform: translate(0.14em, 0)
+  }
+  .chr-med-vec {
+    transform: scale(0.75) translate(0.14em, 0)
+  }
+  .chr-lrg {
+    transform: translate(0.21em, 0)
+  }
+  .chr-lrg-vec {
+    transform: scale(0.75) translate(0.21em, 0)
+  }
+
+  /* For CD labels that grow to the left */
+  .tml-shift-left { margin-left:-100% }
+
+  /* MathML Core & Chromium do not support the MathML 3.0 element <menclose> attributes. */
+  /* So use styles. */
+  menclose {
+    position: relative;
+    padding: 0.5ex 0ex;
+  }
+  
+    .tml-overline {
+    padding: 0.1em 0 0 0;
+    border-top: 0.065em solid;
+  }
+
+  .tml-underline {
+    padding: 0 0 0.1em 0;
+    border-bottom: 0.065em solid;
+  }
+
+  .tml-cancel {
+    display: inline-block;
+    position: absolute;
+    left: 0.5px;
+    bottom: 0;
+    width: 100%;
+    height: 100%;
+    background-color: currentColor;
+  }
+  .upstrike {
+    clip-path: polygon(0.05em 100%, 0em calc(100% - 0.05em), calc(100% - 0.05em) 0em, 100% 0.05em);
+  }
+  .downstrike {
+    clip-path: polygon(0em 0.05em, 0.05em 0em, 100% calc(100% - 0.05em), calc(100% - 0.05em) 100%);
+  }
+  .sout {
+    clip-path: polygon(0em calc(55% + 0.0333em), 0em calc(55% - 0.0333em), 100% calc(55% - 0.0333em), 100% calc(55% + 0.0333em));
+  }
+  .tml-xcancel {
+    background: linear-gradient(to top left,
+    rgba(0,0,0,0) 0%,
+    rgba(0,0,0,0) calc(50% - 0.06em),
+    rgba(0,0,0,1) 50%,
+    rgba(0,0,0,0) calc(50% + 0.06em),
+    rgba(0,0,0,0) 100%),
+    linear-gradient(to top right,
+    rgba(0,0,0,0) 0%,
+    rgba(0,0,0,0) calc(50% - 0.06em),
+    rgba(0,0,0,1) 50%,
+    rgba(0,0,0,0) calc(50% + 0.06em),
+    rgba(0,0,0,0) 100%)
+  }
+
+  .longdiv-top {
+    border-top: 0.067em solid;
+    padding: 0.1em 0.2em 0.2em 0.433em;
+  }
+  .longdiv-arc {
+    position: absolute;
+    top: 0;
+    bottom: 0.1em;
+    left: -0.4em;
+    width: 0.7em;
+    border: 0.067em solid;
+    transform: translateY(-0.067em);
+    border-radius: 70%;
+    clip-path: inset(0 0 0 0.4em);
+    box-sizing: border-box;}
+    .menclose {display: inline-block;
+    text-align: left;
+    position: relative;
+  }
+  
+  .phasor-bottom {
+    border-bottom: 0.067em solid;
+    padding: 0.2em 0.2em 0.1em 0.6em;
+  }
+  .phasor-angle {
+    display: inline-block;
+    position: absolute;
+    left: 0.5px;
+    bottom: -0.04em;
+    height: 100%;
+    aspect-ratio: 0.5;
+    background-color: currentColor;
+    clip-path: polygon(0.05em 100%, 0em calc(100% - 0.05em), calc(100% - 0.05em) 0em, 100% 0.05em);
+  }
+
+  .tml-fbox {
+    padding: 3pt;
+    border: 1px solid;
+  }
+
+  .circle-pad {
+    padding: 0.267em;
+  }
+  .textcircle {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    right: 0;
+    left: 0;
+    border: 0.067em solid;
+    border-radius: 50%;
+   }
+
+   .actuarial {
+    padding: 0.03889em 0.03889em 0 0.03889em;
+    border-width: 0.08em 0.08em 0em 0em;
+    border-style: solid;
+    margin-right: 0.03889em;
+   }
+
+   /* Stretch \widetilde */
+  .tml-crooked-2 {
+    transform: scale(2.0, 1.1)
+  }
+  .tml-crooked-3 {
+    transform: scale(3.0, 1.3)
+  }
+  .tml-crooked-4 {
+    transform: scale(4.0, 1.4)
+  }
+  /* set array cell justification */
+  .tml-right {
+    text-align: -webkit-right;
+  }
+  .tml-left {
+    text-align: -webkit-left;
+  }
+}
+
+.special-fraction {
+  font-family: "IBM Plex Math", 'STIX TWO', 'Times New Roman', Times, Tinos, serif;
+}
+
+/* flex-wrap for line-breaking in Chromium */
+math {
+  display: inline-flex;
+  flex-wrap: wrap;
+  align-items: baseline;
+}
+math > mrow {
+  padding: 0.5ex 0ex;
+}
+
+/* Default mtd top padding is 0.5ex per MathML-Core and user-agent CSS */
+/* We adjust for jot and small */
+mtable.tml-jot mtd {
+  padding-top: 0.7ex;
+  padding-bottom: 0.7ex;
+}
+mtable.tml-small mtd {
+  padding-top: 0.35ex;
+  padding-bottom: 0.35ex;
+}
+
+/* Firefox */
+@-moz-document url-prefix() {
+  /* Avoid flex-wrap */
+  math { display: inline; }
+  math > mrow { padding: 0 }
+  /* Adjust Firefox spacing between array rows */
+  mtd, mtable.tml-small mtd { padding-top: 0; padding-bottom: 0; }
+  mtable.tml-jot mtd { padding-top: 0.2ex; padding-bottom: 0.ex; }
+}
+
+/* AMS environment auto-numbering via CSS counter. */
+.tml-eqn::before {
+  counter-increment: tmlEqnNo;
+  content: "(" counter(tmlEqnNo) ")";
+}
+
+body {
+  counter-reset: tmlEqnNo;
+}
--- a/doerg/resources/net/deertopia/doerg/deerstar.css
+++ b/doerg/resources/net/deertopia/doerg/deerstar.css
--- a/resources/net/deertopia/doerg/default-config.edn
+++ b/resources/net/deertopia/doerg/default-config.edn
@@ -0,0 +1,18 @@
+#:net.deertopia.doerg.config
+{:ibm-plex-web #or [#xdg-data-dir "ibm-plex-web"
+                    #env IBM_PLEX_WEB]
+ :latex "xelatex"
+ :dvisvgm "dvisvgm"
+ :doerg-temml-worker
+ #profile {:dev #file "../../../../doerg-temml-worker/index.js"
+           :default "doerg-temml-worker"}
+ :doerg-parser
+ #profile {:dev #file "../../../../doerg-parser/index.js"
+           :default "doerg-parser"}
+ :state-directory #join [#or [#env XDG_STATE_HOME
+                              #envf ["%s/.local/share" HOME]]
+                         "/doerg-server"]
+ :org-roam-db-path
+ #profile {:default #join [#env HOME "/.cache/emacs/org-roam.db"]
+           :test #join [#or [#env TMP "/tmp"] "/doerg-org-roam-test.db"]}
+ :port #profile {:default 8080}}
--- a/resources/net/deertopia/doerg/elisp/grammar
+++ b/resources/net/deertopia/doerg/elisp/grammar
@@ -0,0 +1,30 @@
+<file> ::= elements
+
+<elements> ::= ws? element ws? elements
+            |  ws? ε
+
+<element> ::= string
+           |  list
+           |  symbol
+           |  integer
+           |  property-string
+
+string ::= <'"'> #'([^"\\]|\\.|\\\n)*' <'"'>
+
+property-string
+  ::= <'#('> ws? string text-property* ws? <')'>
+
+text-property ::= ws? element ws? element ws? element
+
+list ::= <'('> elements dot-cdr? <')'>
+
+symbol ::= #'([^?#0-9 \n\s\f()\[\]"\'\\.]|\\.)([^ \n\s\f()\[\]"\'\\]|\\.)*'
+        |  #'\.([^ \n\s\f()\[\]"\'\\]|\\.)+'
+
+integer ::= #'[-+]?[0-9]+' <#'.'>?
+
+dot-cdr ::= <'.'> ws? element
+
+<text> ::= ws? (string | property-string) ws?
+
+<ws> ::= <#'(\s||\n)'>+
--- a/resources/net/deertopia/doerg/favicon.ico
+++ b/resources/net/deertopia/doerg/favicon.ico
--- a/resources/net/deertopia/doerg/native-prelude.tex
+++ b/resources/net/deertopia/doerg/native-prelude.tex
@@ -0,0 +1,5 @@
+% Default uses arrow glyphs from the active font, which are kinda ugly in the
+% case of Plex.
+\tikzcdset{
+  arrow style=tikz
+}
--- a/resources/net/deertopia/doerg/prelude.tex
+++ b/resources/net/deertopia/doerg/prelude.tex
@@ -0,0 +1,154 @@
+% Of the highest importance:
+\renewcommand{\phi}{\varphi}
+\renewcommand{\epsilon}{\varepsilon}
+
+% Saner abbreviations for font faces (take an argument rather than
+% applying to the current context).
+\renewcommand{\rm}[1]{\mathrm{#1}}
+\newcommand{\bb}[1]{\mathbb{#1}}
+\renewcommand{\bf}[1]{\mathbf{#1}}
+
+% \cA … \cZ
+\newcommand{\cA}{\mathcal{A}}
+\newcommand{\cB}{\mathcal{B}}
+\newcommand{\cC}{\mathcal{C}}
+\newcommand{\cD}{\mathcal{D}}
+\newcommand{\cE}{\mathcal{E}}
+\newcommand{\cF}{\mathcal{F}}
+\newcommand{\cG}{\mathcal{G}}
+\newcommand{\cH}{\mathcal{H}}
+\newcommand{\cI}{\mathcal{I}}
+\newcommand{\cJ}{\mathcal{J}}
+\newcommand{\cK}{\mathcal{K}}
+\newcommand{\cL}{\mathcal{L}}
+\newcommand{\cM}{\mathcal{M}}
+\newcommand{\cN}{\mathcal{N}}
+\newcommand{\cO}{\mathcal{O}}
+\newcommand{\cP}{\mathcal{P}}
+\newcommand{\cQ}{\mathcal{Q}}
+\newcommand{\cR}{\mathcal{R}}
+\newcommand{\cS}{\mathcal{S}}
+\newcommand{\cT}{\mathcal{T}}
+\newcommand{\cU}{\mathcal{U}}
+\newcommand{\cV}{\mathcal{V}}
+\newcommand{\cW}{\mathcal{W}}
+\newcommand{\cX}{\mathcal{X}}
+\newcommand{\cY}{\mathcal{Y}}
+\newcommand{\cZ}{\mathcal{Z}}
+
+% \bA … \bZ
+\newcommand{\bA}{\mathbb{A}}
+\newcommand{\bB}{\mathbb{B}}
+\newcommand{\bC}{\mathbb{C}}
+\newcommand{\bD}{\mathbb{D}}
+\newcommand{\bE}{\mathbb{E}}
+\newcommand{\bF}{\mathbb{F}}
+\newcommand{\bG}{\mathbb{G}}
+\newcommand{\bH}{\mathbb{H}}
+\newcommand{\bI}{\mathbb{I}}
+\newcommand{\bJ}{\mathbb{J}}
+\newcommand{\bK}{\mathbb{K}}
+\newcommand{\bL}{\mathbb{L}}
+\newcommand{\bM}{\mathbb{M}}
+\newcommand{\bN}{\mathbb{N}}
+\newcommand{\bO}{\mathbb{O}}
+\newcommand{\bP}{\mathbb{P}}
+\newcommand{\bQ}{\mathbb{Q}}
+\newcommand{\bR}{\mathbb{R}}
+\newcommand{\bS}{\mathbb{S}}
+\newcommand{\bT}{\mathbb{T}}
+\newcommand{\bU}{\mathbb{U}}
+\newcommand{\bV}{\mathbb{V}}
+\newcommand{\bW}{\mathbb{W}}
+\newcommand{\bX}{\mathbb{X}}
+\newcommand{\bY}{\mathbb{Y}}
+\newcommand{\bZ}{\mathbb{Z}}
+
+% Notation for lambda abstractions and function application. $~$
+% is the spacing that should be used between arguments.
+\newcommand{\lam}[2]{\lambda #1.\ #2}
+
+% Notation for paths, the interval, and its operations.
+\newcommand{\PathP}[3]{\rm{PathP}~ {#1}~ {#2}~ {#3}}
+\newcommand{\Path}[3]{\rm{Path}~ {#1}~ {#2}~ {#3}}
+\newcommand{\Square}[4]{\rm{Square}~ {#1}~ {#2}~ {#3}~ {#4}}
+\newcommand{\ap}[2]{\rm{ap}~ {#1}~ {#2}}
+
+\newcommand{\subst}{\operatorname{subst}}
+\newcommand{\ua}{\operatorname{ua}}
+
+\newcommand{\iZ}{\rm{i0}}
+\newcommand{\iO}{\rm{i1}}
+
+\newcommand{\ineg}{\lnot}
+\newcommand{\imin}{\land}
+\newcommand{\imax}{\lor}
+
+\newcommand{\transport}[2]{\rm{transport}~ #1~ #2}
+\newcommand{\transp}[3]{\rm{transp}~ #1~ #2~ #3}
+\newcommand{\Partial}[2]{\rm{Partial}~ #1~ #2}
+\newcommand{\dcomp}{\mathrel{\cdot\cdot}}
+\newcommand{\Extn}[2]{{#1}[#2]}
+
+\newcommand{\thecat}[1]{\mathbf{#1}}     % Names of "concrete" categories
+\newcommand{\ca}[1]{\mathcal{#1}}    % Names of variable categories
+
+%% \newcommand{\knowncat}[1]{\newcommand{\csname #1\endcsname}{\thecat{#1}}}
+%% \newcommand{\knownbicat}[1]{\newcommand{\csname #1\endcsname}{\thebicat{#1}}}
+
+\newcommand{\ty}{\rm{Type}}
+%% \newcommand{\set}{\rm{Set}}
+\newcommand{\prop}{\rm{Prop}}
+
+%% \DeclareMathOperator{\id}{id}
+%% \DeclareMathOperator{\Id}{Id}
+
+%% \knowncat{Sets}
+%% \knowncat{Ab}
+%% \knowncat{Graphs}
+%% \knowncat{MarkedGraphs}
+%% \knowncat{Props}
+%% \knowncat{FinSets}
+%% \knowncat{Rings}
+%% \knowncat{Grp}
+%% \knowncat{Rel}
+%% \knowncat{Par}
+%% \knowncat{Pos}
+
+\renewcommand{\Set}{\thecat{Set}}
+
+% "Postfix" operators that have a subscript and are annoying to write
+% out:
+\newcommand{\inv}{^{-1}}
+\renewcommand{\op}{^{\rm{op}}}
+
+\newcommand{\eps}{\varepsilon}
+
+\newcommand{\B}[1]{\mathbf{B} #1}
+\newcommand{\point}[1]{\bullet_{#1}}
+\newcommand{\List}[1]{\operatorname{List}(#1)}
+
+\renewcommand{\hom}{\mathbf{Hom}}
+
+\newcommand{\refl}{\mathrm{refl}}
+
+\DeclareMathOperator{\isiso}{is-iso}
+\DeclareMathOperator{\isequiv}{is-equiv}
+
+% Relations
+\newcommand{\pathto}{\equiv}
+\newcommand{\is}{\pathto}
+\newcommand{\definedto}{≔}
+\newcommand{\equivto}{\simeq}
+\newcommand{\homotopicto}{\sim}
+\newcommand{\homotopyto}{\sim}
+\newcommand{\naturalto}{\Rightarrow}
+\newcommand{\isoto}{\cong}
+\newcommand{\monicto}{\rightarrowtail}
+\newcommand{\epicto}{\twoheadrightarrow}
+
+% Category names
+\newcommand{\C}[1]{\mathbf{#1}}
+
+\newcommand{\homset}[3]{{{#1} \left[ {#2} \to {#3} \right]}}
+\newcommand{\horizontalcompose}{\ast}
--- a/resources/net/deertopia/doerg/preview-template.tex
+++ b/resources/net/deertopia/doerg/preview-template.tex
@@ -0,0 +1,19 @@
+\documentclass[tikz,dvisvgm]{standalone}
+\usepackage[active,tightpage,auctex,dvips]{preview}
+\usepackage{amsmath}
+\usepackage{amssymb}
+\usepackage{ifxetex}
+\usepackage{syd-plex}
+\usepackage{quiver}
+\usepackage{tikz}
+\usepackage{amscd}
+\usepackage{metalogo}
+
+% {{preamble}}
+
+\begin{document}
+\setlength\abovedisplayskip{0pt} % Remove padding before equation environments.
+
+% {{contents}}
+
+\end{document}
--- a/resources/net/deertopia/doerg/public/Temml-Plex.css
+++ b/resources/net/deertopia/doerg/public/Temml-Plex.css
@@ -0,0 +1 @@
+../Temml-Plex.css
--- a/resources/net/deertopia/doerg/public/deerstar.css
+++ b/resources/net/deertopia/doerg/public/deerstar.css
@@ -0,0 +1 @@
+../deerstar.css
--- a/resources/net/deertopia/doerg/public/tuftesque.css
+++ b/resources/net/deertopia/doerg/public/tuftesque.css
@@ -0,0 +1 @@
+../tuftesque.css
--- a/doerg/resources/net/deertopia/doerg/tuftesque.css
+++ b/doerg/resources/net/deertopia/doerg/tuftesque.css
@@ -104,9 +104,10 @@ section {
 p,
 dl,
 ol,
+.latex-fragment,
 ul {
-    font-size: 1.4rem;
-    line-height: 2rem;
+    font-size: 1.2rem;
+    line-height: 1.5rem;
 }

 p {
@@ -114,6 +115,7 @@ p {
    margin-bottom: 1.4rem;
    padding-right: 0;
    vertical-align: baseline;
+    hyphens: auto;
 }

 /* Chapter Epigraphs */
@@ -219,7 +221,7 @@ img {
 }

 .sidenote,
-.margin-note {
+.marginnote {
    float: right;
    clear: right;
    margin-right: -60%;
@@ -436,7 +438,7 @@ label.margin-toggle:not(.sidenote-number) {
    }
 }

-.link.external::after
+.org-link.external::after
 { content: "↗"
 ; vertical-align: super
 ; font-size: 1rem
@@ -444,8 +446,8 @@ label.margin-toggle:not(.sidenote-number) {
 }

 .center
-{ align-items: "center"
-; justify-content: "center"
+{ align-items: center
+; justify-content: center
 ; display: flex
 ; max-width: 55%
 }
@@ -542,3 +544,22 @@ figure.fullwidth figcaption {
 ; max-width: 55%
 ; font-size: 1.5rem
 }
+
+.latex-fragment
+{ fill: currentColor
+}
+
+.latex-fragment.display-math
+{ display: block
+/* Center it — do we want to do that? */
+; align-items: center
+; justify-content: center
+; display: flex
+; max-width: 55%
+; width: 55%
+}
+
+p > .latex-fragment.display-math
+{ max-width: 100%
+; width: 100%
+}
--- a/src/net/deertopia/doerg/cached_file.clj
+++ b/src/net/deertopia/doerg/cached_file.clj
@@ -0,0 +1,25 @@
+(ns net.deertopia.doerg.cached-file
+  (:require [babashka.fs :as fs]))
+
+(defn newer-than?
+  "Return `true` if fs `file₁` was last modified sooner or at the same
+  time as `file₂`, or if `file₂` does not exist."
+  [file₁ file₂]
+  (or (not (fs/exists? file₂))
+      (<= 0 (compare (fs/last-modified-time file₁)
+                     (fs/last-modified-time file₂)))))
+
+(def ^:dynamic *use-cache?*
+  "Bind to `false` to disable caching for debugging purposes."
+  true)
+
+(defn cached-file
+  "Return a file path after potentially regenerating the file by
+  calling `compute` with no arguments only if stale? is logical true."
+  [& {:keys [file stale? compute]}]
+  (when (or (not *use-cache?*) stale?)
+    (let [r (compute)]
+      (assert (string? r))
+      (fs/create-dirs (fs/parent file))
+      (spit file r)))
+  file)
--- a/src/net/deertopia/doerg/common.clj
+++ b/src/net/deertopia/doerg/common.clj
@@ -0,0 +1,125 @@
+(ns net.deertopia.doerg.common
+  (:require [babashka.process :as p]
+            [clojure.string :as str]
+            [clojure.tools.logging :as l]
+            [clojure.java.io :as io])
+  (:import (java.io FilterInputStream StringWriter InputStream
+                    OutputStream PrintStream ByteArrayOutputStream
+                    ByteArrayInputStream FilterOutputStream)
+           (java.nio.charset StandardCharsets)))
+
+(defn deref-with-timeout [process ms]
+  (let [p (promise)
+        process-future (future (deliver p @process))
+        timeout-future (future (Thread/sleep ms)
+                               (future-cancel process-future)
+                               (p/destroy-tree process)
+                               (deliver p ::timed-out))]
+    (if (= @p ::timed-out)
+      (throw (ex-info (format "external command `%s' timed out after %.2fs."
+                              (str/join " " (:cmd process))
+                              (/ (double ms) 1000))
+                      {:process process
+                       :timed-out-after-milliseconds ms}))
+      @p)))
+
+(defn tee-input-stream
+  "Return a wrapped `InputStream` that writes all bytes read from
+  input-stream to sink, à la the UNIX command tee(1)."
+  [input-stream sink]
+  (proxy [FilterInputStream] [input-stream]
+    (read
+      ([]
+       (let [c (proxy-super read)]
+         (when (not= c -1)
+           (.write sink c))
+         c))
+      ([^bytes bs]
+       (let [n (proxy-super read bs)]
+         (when (not= n -1)
+           (.write sink bs 0 n))
+         n))
+      ([^bytes bs off len]
+       (let [n (proxy-super read bs off len)]
+         (when (not= n -1)
+           (.write sink bs off n))
+         n)))
+    (close []
+      (try (proxy-super close)
+           (finally (.close sink))))))
+
+(defn tee-output-stream
+  "Return a wrapped `OutputStream` that writes all bytes written to
+  output-stream to sink, à la the UNIX command tee(1)."
+  [output-stream sink]
+  (proxy [FilterOutputStream] [output-stream]
+    (write
+      ([bs-or-b]
+       (proxy-super write bs-or-b)
+       (.write sink bs-or-b))
+      ([^bytes bs off len]
+       (proxy-super write bs off len)
+       (.write sink bs off len)))
+    (close []
+      (try (proxy-super close)
+           (finally (.close sink))))))
+
+#_
+(defn hook-input-stream [input-stream hook]
+  (proxy [FilterInputStream] [input-stream]
+    (read
+      ([]
+       (let [c (proxy-super read)]
+         (when (not= c -1)
+           (hook (byte-array [c])))
+         c))
+      ([^bytes bs]
+       (let [n (proxy-super read bs)]
+         (when (not= n -1)
+           (let [bs* (byte-array n 0)]
+             (System/arraycopy bs 0 bs* 0 n)
+             (hook bs*)))
+         n))
+      ([^bytes bs off len]
+       (let [n (proxy-super read bs off len)]
+         (when (not= n -1)
+           (.write sink bs off n))
+         n)))
+    (close []
+      (try (proxy-super close)
+           (finally (.close sink))))))
+
+(comment
+  (with-open [sink (ByteArrayOutputStream.)
+              out (ByteArrayOutputStream.)
+              in (ByteArrayInputStream. (.getBytes "hello worms"))]
+    (io/copy (tee-input-stream in sink) out)
+    (def the-out out)
+    (def the-sink sink)
+    {:out out
+     :sink sink})
+  (with-open [sink (l/log-stream :info "blah")
+              out (ByteArrayOutputStream.)
+              in (ByteArrayInputStream. (.getBytes "hello worms"))]
+    (io/copy (tee-input-stream in sink) out)
+    (def the-out out)
+    (def the-sink sink)
+    {:out out
+     :sink sink}))
+
+(comment
+  (let [out (ByteArrayOutputStream.)]
+    (p/shell {:out (tee-output-stream
+                    out (l/log-stream :info "blah"))}
+             "echo" "hello\n" "worms")
+    (.toString out)))
+
+(defn invoke [opts & cmd]
+  (l/info (str/join " " (cons "$" cmd)))
+  (let [r (apply p/shell
+                 (merge {:continue true
+                         :in nil :out :string :err :string}
+                        opts)
+                 cmd)
+        bin (first cmd)]
+    r))
--- a/src/net/deertopia/doerg/config.clj
+++ b/src/net/deertopia/doerg/config.clj
@@ -0,0 +1,82 @@
+(ns net.deertopia.doerg.config
+  (:require [clojure.spec.alpha :as s]
+            [babashka.fs :as fs]
+            [aero.core :as aero]
+            [clojure.java.io :as io]))
+
+(s/def ::config
+  (s/keys :req [::ibm-plex-web
+                ::latex
+                ::dvisvgm
+                ::doerg-temml-worker
+                ::doerg-parser
+                ::state-directory
+                ::org-roam-db-path]))
+
+(s/def ::directory
+  (s/conformer #(fs/file %)))
+
+(s/def ::file
+  (s/conformer #(-> % fs/expand-home fs/file)))
+
+(s/def ::executable
+  (s/conformer
+   ;; I'd love to use `fs/which` here, but it's fairly problematic to
+   ;; check `fs/executable?` at… build time (which `fs/which` does)?
+   ;; Wait… what?  Do I know how Clojure compilation works?
+   #(or #_(some-> % fs/expand-home fs/which fs/file)
+        (some-> % fs/expand-home fs/file)
+        ::s/invalid)))
+
+(s/def ::ibm-plex-web ::directory)
+
+(s/def ::latex ::executable)
+
+(s/def ::dvisvgm ::executable)
+
+(s/def ::doerg-temml-worker ::executable)
+
+(s/def ::doerg-parser ::executable)
+
+(s/def ::state-directory ::file)
+(s/def ::org-roam-db-path ::file)
+
+(defmethod aero/reader 'xdg-data-dir
+  [_opts tag value]
+  "Aero tag to search for a directory on $XDG_DATA_DIRS."
+  (some #(let [x (fs/path % value)]
+           (and (fs/exists? x) x))
+        (fs/split-paths (System/getenv "XDG_DATA_DIRS"))))
+
+(defmethod aero/reader 'file
+  [{:keys [source]} tag value]
+  "Aero tag to reference a `java.io.File` relative to the config
+  file."
+  (-> (aero/relative-resolver source value)
+      fs/file))
+
+(defn read-config [files & {:as opts}]
+  (let [r (->> files
+               (filter identity)
+               (map #(aero/read-config % opts))
+               (apply merge))
+        conformed (s/conform ::config r)]
+    (if-not (s/invalid? conformed)
+      conformed
+      (throw (ex-info "Failed to conform config"
+                      (s/explain-data ::config r))))))
+
+(defn load-config! [var spec files & {:as opts}]
+  (alter-var-root var (constantly (read-config files opts))))
+
+(def sources
+  [;; Default config.
+   (io/resource "net/deertopia/doerg/default-config.edn")
+   ;; Defaults set at build time, if any.
+   (io/resource "net/deertopia/doerg/extra-config.edn")
+   ;; Config set at runtime.
+   (System/getenv "DOERG_CONFIG")])
+
+(def default (read-config sources))
+
+(def ^:dynamic *cfg* default)
--- a/doerg/src/net/deertopia/doerg/element.clj
+++ b/doerg/src/net/deertopia/doerg/element.clj
@@ -1,39 +1,31 @@
 (ns net.deertopia.doerg.element
-  (:require [babashka.process :as p]
-            [clojure.string :as str]
-            [clojure.zip]
-            [babashka.fs :as fs]
-            [clojure.java.io :as io]
+  (:refer-clojure :exclude [read-string type])
+  (:require [babashka.fs :as fs]
+            [babashka.process :as p]
            [cheshire.core :as json]
-            [clojure.spec.alpha :as s]
-            [spec-dict.main :refer [dict]]
-            [net.deertopia.doerg.config :as cfg]
+            [clojure.core.match :refer [match]]
+            [net.deertopia.doerg :as-alias doerg]
+            [clojure.java.io :as io]
+            [clojure.set :as set]
+            [clojure.string :as str]
+            [clojure.test.check.generators :as gen]
+            [clojure.tools.logging.readable :as lr]
+            [clojure.zip :as z]
            [com.rpl.specter :as sp]
-            [clojure.tools.logging.readable :as lr])
-  (:import (java.util UUID))
-  (:refer-clojure :exclude [read-string]))
+            [com.rpl.specter.zipper :as sz]
+            [net.deertopia.doerg.common :as common]
+            [net.deertopia.doerg.config :as cfg]
+            [clojure.tools.logging :as l])
+  (:import
+   (java.util UUID)))
+


-(defonce ^:private uniorg-script-path-atom (atom nil))
-
-(def ^:dynamic *uniorg-timeout-after-milliseconds*
+(def ^:dynamic *uniorg-timeout-duration*
+  "Number of milliseconds to wait before killing the external Uniorg
+  process."
  (* 10 1000))

-(defn deref-with-timeout [process ms]
-  (let [p (promise)
-        process-future (future (deliver p @process))
-        timeout-future (future (Thread/sleep ms)
-                               (future-cancel process-future)
-                               (p/destroy-tree process)
-                               (deliver p ::timed-out))]
-    (if (= @p ::timed-out)
-      (throw (ex-info (format "external command `%s' timed out after %.2fs."
-                              (str/join " " (:cmd process))
-                              (/ (double ms) 1000))
-                      {:process process
-                       :timed-out-after-milliseconds ms}))
-      @p)))
-
 (defn- camel->kebab [s]
  (->> (str/split s #"(?<=[a-z])(?=[A-Z])")
       (map str/lower-case)
@@ -43,19 +35,21 @@
                 :or {in *in*}}]
  (let [r (-> (p/process
               {:in in :out :string}
-               "doerg-parser")
-              (deref-with-timeout *uniorg-timeout-after-milliseconds*))]
-    (if (zero? (:exit r))
+               (-> cfg/*cfg* ::doerg/doerg-parser str))
+              (common/deref-with-timeout *uniorg-timeout-duration*))]
+    (when (zero? (:exit r))
      (-> r :out (json/parse-string (comp keyword camel->kebab))))))

-(declare gather-first-section)
+(declare gather-first-section gather-latex-paragraphs element-types)

-(defn read-string [s & {:keys [post-processors]
-                        :or {post-processors [gather-first-section]}}]
+(defn read-string
+  [s & {:keys [post-processors]
+        :or {post-processors [gather-first-section
+                              gather-latex-paragraphs]}}]
  (let [apply-post-processors (apply comp (reverse post-processors))]
    (with-in-str s
-     (-> (uniorg :in *in*)
-         apply-post-processors))))
+      (-> (uniorg :in *in*)
+          apply-post-processors))))



@@ -69,11 +63,12 @@
  (and (map? e) (contains? e :children)))

 (defn org-element? [element]
-  #_
-  (s/valid? ::org-element element)
  (and (map? element)
       (contains? element :type)))

+(defn type [element]
+  (:type element))
+
 (defn of-type?
  "Return truthy if the Org node `element` is of type `type`. In the
  vararg case, return truthy if `element` is of any of the types
@@ -93,15 +88,12 @@
       (when-some [footnotes-headline (first (:children element))]
         (= "Footnotes" (:raw-value footnotes-headline)))))

-
-;;; Spec
-
-(s/def ::org-element
-  (dict {:type string?}
-        ^:opt {:contents-begin nat-int?
-               :contents-end nat-int?
-               :children (s/coll-of ::org-element
-                                    :kind seq?)}))
+(defn display-math?
+  "Return truthy if `element` should be considered display math."
+  [element]
+  (or (of-type? element "latex-environment")
+      (and (of-type? element "latex-fragment")
+           (-> element :contents (str/starts-with? "\\[")))))


 ;;; Zipper
@@ -192,8 +184,8 @@
  parser, return a map with the following keys
  • :top-level-nodes      The nodes that /should/ be at the top-level.
  • :first-section-nodes  The nodes that should be wrapped in a new
-                          section node
-  • :rest                 Everything else!"
+                          section node.
+  • :rest                 Everything else."
  [nodes]
  (let [[of-top-level remaining-nodes]
        (->> nodes (split-with #(of-type? % "property-drawer" "keyword")))
@@ -203,6 +195,22 @@
     :first-section-nodes of-first-section
     :rest remaining-nodes*}))

+(defn- element-bounds [& nodes]
+  (reduce (fn [acc {:keys [contents-begin contents-end]}]
+            (if (and (nat-int? contents-begin)
+                     (nat-int? contents-end))
+              (-> acc
+                  (update
+                   :contents-begin
+                   #(min (or % Integer/MAX_VALUE) contents-begin))
+                  (update
+                   :contents-end
+                   #(max (or % Integer/MIN_VALUE) contents-end)))
+              acc))
+          {:contents-begin nil
+           :contents-end nil}
+          nodes))
+
 (defn gather-first-section [node]
  (assert (of-type? node "org-data")
          "`gather-doerg-data` should be applied to the document root.")
@@ -210,8 +218,86 @@
        (split-sections (:children node))
        ;; TODO: Construct `:contents-begin` and `:contents-end` data
        ;; by spanning the children.
-        new-children (concat top-level-nodes
-                             (list {:type "section"
-                                    :children first-section-nodes})
-                             rest)]
+        first-section (merge {:type "section"
+                              :children (vec first-section-nodes)}
+                             (apply element-bounds first-section-nodes))
+        new-children (vec (concat top-level-nodes
+                                  (list first-section)
+                                  rest))]
    (assoc node :children new-children)))
+
+(defn- newline-final-paragraph?
+  "Is `e` a paragraph, and does it end with a newline?"
+  [e]
+  (and (of-type? e "paragraph")
+       (some-> (-> e :position :end :column)
+               (= 1))))
+
+(defn consequtive-elements?
+  "Returh truthy if each successive pair of elements is NOT separated
+  by at least one explicit paragraph break; i.e. a blank line."
+  [& elements]
+  (match elements
+    ([(e₁ :guard newline-final-paragraph?) e₂ & es] :seq)
+    (and (= (-> e₁ :position :end :line)
+            (-> e₂ :position :start :line))
+         (recur es))
+    ([e₁ e₂ & es] :seq)
+    (and (= (-> e₁ :position :end :line inc)
+            (-> e₂ :position :start :line))
+         (recur es))
+    ([_] :seq) true
+    ([] :seq) true))
+
+(defn swallow
+  ([predator prey]
+   (assert (greater-element? predator))
+   (-> predator
+       (update :children #(conj % prey))
+       (assoc-in [:position :end] (-> prey :position :end))))
+  ([predator prey & more-prey]
+   (reduce swallow predator (cons prey more-prey))))
+
+(defn- paragraph-followed-by-tex? [children]
+  (match children
+    [(para :guard #(of-type? % "paragraph"))
+     (tex :guard #(of-type? % "latex-environment"))
+     & _]
+    (consequtive-elements? para tex)
+    :else false))
+
+(defn- paragraph-followed-by-paragraph? [children]
+  (match children
+    [(para₁ :guard #(of-type? % "paragraph"))
+     (para₂ :guard #(of-type? % "paragraph"))
+     & _]
+    (consequtive-elements? para₁ para₂)
+    :else false))
+
+(defn gather-latex-paragraphs [node]
+  (->> node
+       (sp/transform
+        [postorder-walker (sp/must :children)]
+        (fn [children]
+          (loop [acc []
+                 cs (vec children)]
+            (match cs
+              ;; CASE: A paragraph followed by a LaTeX environment.
+              ;; If there are no blank lines separating the paragraph
+              ;; from the LaTeX environment, the LaTeX environment
+              ;; shall become a child of the paragraph.
+              ([para tex & rest] :guard paragraph-followed-by-tex?)
+              (recur acc (vec (cons (swallow para tex) rest)))
+              ;; CASE: Similar to the paragraph-followed-by-tex case,
+              ;; but instead of swallowing the entire second element,
+              ;; we swallow the /children/ of the second element,
+              ;; since paragraphs cannot be nested.
+              ([para₁ para₂ & rest]
+               :guard paragraph-followed-by-paragraph?)
+              (recur acc (vec (cons (apply swallow para₁ (:children para₂))
+                                    rest)))
+              ;; CASE: Irrelevant or empty!
+              [c & rest]
+              (recur (conj acc c) rest)
+              [] acc))))))
+
--- a/src/net/deertopia/doerg/elisp.clj
+++ b/src/net/deertopia/doerg/elisp.clj
@@ -0,0 +1,119 @@
+(ns net.deertopia.doerg.elisp
+  (:require [clojure.core.match :refer [match]]
+            [clojure.java.io :as io]
+            [clojure.spec.alpha :as s]
+            [instaparse.core :as ip])
+  (:refer-clojure :exclude [print read read-string]))
+
+(ip/defparser read*
+  (io/resource "net/deertopia/doerg/elisp/grammar"))
+
+(defn- transform-string [s]
+  (let [s* (loop [s (seq s)
+                  acc ""]
+             (match s
+               ([\\ c & cs] :seq)
+               (recur
+                cs
+                (str acc
+                     (condp = c
+                       \n \newline
+                       \f \formfeed
+                       \\ \\
+                       \" \"
+                       \newline nil
+                       (throw (ex-info "IDK!" {:char c})))))
+               ([c & cs] :seq) (recur cs (str acc c))
+               ([] :seq) acc))]
+    [:string (apply str s*)]))
+
+(defn- transform-integer [s]
+  [:integer (parse-long s)])
+
+(defn- transform-property-string
+  ([[_ text]]
+   [:string text])
+  ([[_ text] & props]
+   [:string text (->> (for [[_ [_ beg] [_ end] prop] props]
+                        {[beg end] prop})
+                      (apply merge))]))
+
+(defn- transform-list [& xs]
+  (match (last xs)
+    [:dot-cdr x] [:cons* (butlast xs) x]
+    _ [:cons* xs]))
+
+(def transforms {:string transform-string
+                 :list transform-list
+                 :integer transform-integer
+                 :property-string transform-property-string})
+
+(defn read [s & args]
+  (->> (apply read* s args)
+       (ip/transform transforms)))
+
+(defn read-string [s]
+  (read s :start :text))
+
+(defn cons? [x]
+  (= (first x) :cons*))
+
+(s/def ::alist
+  (s/tuple #{:list}
+           (s/and ::list
+                  cons?)))
+
+(defn car [x]
+  (match x
+    [:cons* xs y] (first xs)
+    [:cons* xs] (first xs)
+    [:symbol "nil"] nil
+    _ nil))
+
+(defn cdr [x]
+  (match x
+    [:cons* xs y] (if (<= (count xs) 1)
+                    y
+                    [:cons* (rest xs) y])
+    [:cons* xs] [:cons* (rest xs)]
+    [:symbol "nil"] nil
+    _ nil))
+
+(defn emacs-list? [x]
+  (match x
+    [:cons* xs] true
+    _ false))
+
+(defn read-alist [s]
+  (let [r (->> s read*
+               (ip/transform
+                (merge transforms
+                       {:symbol (fn [s] (symbol s))
+                        :string (fn [s] s)}))
+               first)]
+    (match r
+      [:cons* pairs] (->> (for [pair pairs]
+                            (let [x (car pair)
+                                  y (cdr pair)]
+                              {x y}))
+                          (apply merge))
+      _ nil)))
+
+(defn read-string [s]
+  (match (-> s read first)
+    [:string x & props] x
+    :else nil))
+
+(defn print [x]
+  ;; TODO: this is really not how it should be done lol. at the
+  ;; moment, `print` is only used in `net.deertopia.doerg.roam`
+  ;; and only to serialise uuids, so it's not a /massive/ priority.
+  (cond (or (string? x) (uuid? x)) (str \" x \")
+        :else (throw (ex-info "`print` is unimplemented lol"
+                              {:x x}))))
+
+(comment
+  (do (ip/defparser parse* (io/resource "elisp-grammar"))
+      (read "#(\"blah\" 0 1 (doge))")
+      (read "\"bla\\nh\"")
+      (read-alist "((x . y))")))
--- a/doerg/src/net/deertopia/doerg/html.clj
+++ b/doerg/src/net/deertopia/doerg/html.clj
@@ -1,7 +1,6 @@
 (ns net.deertopia.doerg.html
  "Common HTML elements and utilities"
  (:require [clojure.java.io :as io]
-            [net.deertopia.doerg.config :as cfg]
            [babashka.fs :as fs]))

 #_
@@ -28,31 +27,20 @@
  [:meta {:charset "utf-8"}])

 (defn external-stylesheet [href]
-  [:link {:rel "stylesheet" :type "text/css" :href href}])
+  [:link {:rel "stylesheet" :type "text/css" :href (str "/resource/" href)}])

 (def ibm-plex
-  (for [family ["serif" "sans-kr" "math"]]
-    #_
-    [:style (-> cfg/*cfg* ::cfg/ibm-plex-web
-                (fs/file (format "css/ibm-plex-%s-default.min.css" family))
-                slurp)]
-    (external-stylesheet
-     (format "ibm-plex-web/css/ibm-plex-%s-all.min.css" family))))
+  (concat
+   (for [family ["serif" "sans-kr" "math"]]
+     (external-stylesheet
+      (format "ibm-plex-web/css/ibm-plex-%s-all.min.css" family)))
+   [(external-stylesheet "Temml-Plex.css")]))

 (def deerstar
-  (external-stylesheet "deerstar.css")
-  #_
-  [:style (slurp (io/resource "net/deertopia/doerg/deerstar.css"))])
+  (external-stylesheet "deerstar.css"))

 (def tuftesque
-  (external-stylesheet "tuftesque.css")
-  #_
-  [:link {:rel "stylesheet"
-          :type "text/css"
-          :href "/resources/tuftesque.css"}]
-  #_
-  [:style
-   (slurp (io/resource "net/deertopia/doerg/tuftesque.css"))])
+  (external-stylesheet "tuftesque.css"))

 (def head
  (list viewport charset ibm-plex deerstar tuftesque))
--- a/doerg/src/net/deertopia/doerg/main.clj
+++ b/doerg/src/net/deertopia/doerg/main.clj
--- a/doerg/src/net/deertopia/doerg/render.clj
+++ b/doerg/src/net/deertopia/doerg/render.clj
@@ -1,13 +1,19 @@
 (ns net.deertopia.doerg.render
  (:require [net.deertopia.doerg.element :as element]
            [clojure.stacktrace]
+            [clojure.string :as str]
            [clojure.tools.logging :as l]
            [clojure.core.match :refer [match]]
            [clojure.tools.logging.readable :as lr]
            [com.rpl.specter :as sp]
            [net.deertopia.doerg.html :as doerg-html]
+            [hiccup2.core :as hiccup]
            [clojure.pprint]
-            [clojure.zip :as z]))
+            [net.deertopia.doerg.tex :as tex]
+            [net.deertopia.doerg.tex.temml :as tex-temml]
+            [clojure.zip :as z]
+            [babashka.fs :as fs]
+            [clojure.edn :as edn]))

 ;;; Top-level API

@@ -34,35 +40,51 @@
  #(do (assert (element/of-type? % "keyword"))
       (:key %)))

-(def ^:dynamic ^:private *document-info*)
+(def ^:dynamic ^:private *opts*)

 (declare ^:private gather-footnotes render-renderer-error
-         view-children-as-seq)
+         view-children-as-seq render-tex-snippets)

 (defn org-element-recursive
  "Recursively render an Org-mode element to Hiccup."
  [e]
  (->> e
-       ;; gather-footnotes
       (sp/transform
-          [element/postorder-walker view-children-as-seq]
-          (fn [node]
-            (try (org-element node)
-                 (catch Throwable e
-                   (lr/error e "Error in renderer" {:node node})
-                   (render-renderer-error e)))))))
+        [element/postorder-walker view-children-as-seq]
+        (fn [node]
+          (try (org-element node)
+               (catch Throwable e
+                 (lr/error e "Error in renderer" {:node node})
+                 (render-renderer-error e)))))))
+
+(def default-language
+  "Default language, used in the lang attribute of the body tag."
+  "en")

 (defn org-document
  "Recursively render an Org-mode document to Hiccup."
-  [doc]
-  (let [rendered (org-element-recursive (gather-footnotes doc))]
-    [:html
-     [:head
-      [:title "org document"]
-      doerg-html/head]
-     [:body
-      [:article
-       rendered]]]))
+  [doc & {:as opts :keys [postamble]}]
+  (binding [*opts* opts]
+    (tex-temml/binding-worker
+      (let [rendered (-> doc gather-footnotes render-tex-snippets
+                         org-element-recursive)]
+        [:html
+         [:head
+          [:title "org document"]
+          doerg-html/head]
+         [:body {:lang default-language}
+          [:article
+           rendered
+           (when postamble
+             [:footer
+              [:hr]
+              postamble])]]]))))
+
+(defn to-html
+  "Read `f` with `slurp` as an Org document and return a string of
+  rendered HTML.  See `org-document` for opts."
+  [f & {:as opts}]
+  (str (hiccup/html {} (-> f slurp element/read-string (org-document opts)))))


 ;;; Further dispatching on `org-element`
@@ -73,6 +95,9 @@
 (defmethod org-element "link" [e]
  (org-link e))

+(defmethod org-element "special-block" [e]
+  (org-special-block e))
+


 (def view-children-as-seq
@@ -83,16 +108,18 @@
              (sp/view #(update % :children seq))
              sp/STAY))

-#_
-(defn- gather-footnotes [doc]
-  (->> doc
-       (sp/select
-        [element/children-walker element/footnotes-section?
-         element/children-walker
-         #(element/of-type? % "footnote-definition")
-         (sp/view (fn [d]
-                    {(:label d) d}))])
-       (apply merge)))
+(defn center [& es]
+  [:div.center es])
+
+(defn doerg-attrs [e]
+  (->> e :affiliated :attr_doerg (str/join " ")
+       (format "{%s}") edn/read-string))
+
+(defn em [x]
+  (format "%.4fem" x))
+
+(defn wrap-if [x c f]
+  (if c (f x) x))

 (defn- contains-footnote-refs? [node]
  (some #(element/of-type? % "footnote-reference")
@@ -130,9 +157,48 @@
                     element/footnotes-section?]
                    sp/NONE))))

+(defn- collect-latex-headers [doc]
+  (->> doc
+       (sp/select
+        [element/postorder-walker
+         #(element/of-keyword-type? % "LATEX_HEADER")
+         (sp/view :value)])))
+
+(defn- timeout-snippet-promises [snippet-promises fut]
+  ;; Time out after twenty seconds. With all the LaTeX and IPC, there
+  ;; are so many opportunities for things to go wrong </3.
+  (let [ms (* 20 1000)
+        fut-res (deref fut ms ::timed-out)]
+    (if (= fut-res ::timed-out)
+      (do (l/warnf "Giving up on rendering TeX snippets after %.3f seconds."
+                   (/ ms 1000))
+          (future-cancel fut)
+          (doseq [[_snippet p] snippet-promises]
+            (deliver p ::timed-out)))
+      fut-res)))
+
+(defn render-tex-snippets
+  "Traverse doc, adorning each LaTeX node with a promise resolving to,
+  optimistically, Hiccup-rendered SVG or MathML code."
+  [doc]
+  (let [snippet-promises (atom [])
+        r (->> doc (sp/transform
+                    [element/postorder-walker
+                     #(element/of-type?
+                       % "latex-fragment" "latex-environment")]
+                    (fn [node]
+                      (let [p (promise)]
+                        (swap! snippet-promises #(conj % [(:value node) p]))
+                        (assoc node ::rendered p)))))
+        sp @snippet-promises
+        fut (-> #(tex/render-snippets sp)
+                bound-fn* future-call)]
+    (timeout-snippet-promises sp fut)
+    r))
+


-(defn- render-pprint
+(defn render-pprint
  "Render the argument inline as `clojure.pprint/pprint` output."
  [x & {:keys [text]
        :or {text "debug!"}}]
@@ -163,6 +229,10 @@
                                :dd (apply vector :dd dds)}
    _ nil))

+(defn- same-tag? [x y]
+  (let [x* (-> x name (str/replace #"^([^\.#]).*" "$1") keyword)]
+    (= x* y)))
+
 ;; In HTML5, </p> tags cannot be nested for… reasons.  In fact, no
 ;; block-level elements are allowed within paragraphs.  This stupid
 ;; hack works around that restriction by stripping </p> tags }:).
@@ -170,8 +240,10 @@
  (apply concat
         (for [x elements]
           (match x
-             [:p (_ :guard map?) & xs] (seq xs)
-             [:p & xs] (seq xs)
+             [(_ :guard #(same-tag? % :p)) (_ :guard map?) & xs]
+             (seq xs)
+             [(_ :guard #(same-tag? % :p)) & xs]
+             (seq xs)
             _ x))))


@@ -201,6 +273,18 @@
 (defmethod org-element "bold" [{:keys [children]}]
  [:b children])

+(defmethod org-element "subscript" [{:keys [children]}]
+  [:sub children])
+
+(defmethod org-element "superscript" [{:keys [children]}]
+  [:super children])
+
+(defmethod org-element "italic" [{:keys [children]}]
+  [:em children])
+
+(defmethod org-element "verbatim" [{:keys [value]}]
+  value)
+
 (defmethod org-element "code" [{:keys [value]}]
  [:code value])

@@ -247,14 +331,62 @@
 (defmethod org-element "node-property" [{:keys [key value]}]
  [:tr [:th key] [:td value]])

-(defmethod org-element "citation" [{:keys [prefix suffix children]}]
-  [:div prefix children suffix])
+(defmethod org-element "citation" [{:keys [prefix suffix children] :as e}]
+  ;; TODO: Real citations.
+  [:span "[cite:" prefix children suffix "]"])
+
+(defmethod org-element "citation-reference" [{:keys [key]}]
+  (str "@" key))
+
+(defmethod org-element "latex-fragment" [{:keys [contents value] :as e}]
+  [:span {:class (if (element/display-math? e)
+                   "latex-fragment display-math"
+                   "latex-fragment")}
+   (-> e ::rendered deref)])
+
+(defmethod org-element "latex-environment" [{:keys [value] :as e}]
+  [:span.latex-fragment.display-math
+   (-> e ::rendered deref)])
+
+(defmethod org-element "example-block" [{:keys [value] :as e}]
+  (let [{:keys [center? alt scale img?]} (doerg-attrs e)]
+    (-> [:pre (merge (and img? {:role "img"
+                                :aria-label alt
+                                :title alt})
+                     (and scale {:style {:font-size (em scale)}}))
+         value]
+        (wrap-if center? center))))
+
+(defmethod org-element "src-block" [{:keys [value]}]
+  [:pre [:code value]])
+
+(defn- split-quote-block-children [children]
+  (match (split-with #(not= % [:hr]) children)
+    [x ([[:hr] & ys] :seq)] [x (strip-paragraphs ys)]
+    x x))
+
+(defmethod org-element "quote-block" [{:keys [children] :as e}]
+  (let [{:keys [epigraph?]} (doerg-attrs e)
+        [content footer] (split-quote-block-children children)]
+    (-> [:blockquote
+         content
+         (when footer
+           [:footer footer])]
+        (wrap-if epigraph? (fn [c] [:div.epigraph c])))))
+
+(defmethod org-element "horizontal-rule" [_]
+  [:hr])
+
+(defmethod org-element "comment" [_] nil)

 (defmethod org-keyword "TITLE" [{:keys [value]}]
  [:h1 value])

-;; Completely ignore the LATEX_COMPILER keyword.
 (defmethod org-keyword "LATEX_COMPILER" [_] nil)
+(defmethod org-keyword "LATEX_HEADER" [_] nil)
+
+;; Not sure how to deal with this one yet.
+(defmethod org-keyword "AUTHOR" [_] nil)

 (defmethod org-element :default [x]
  (render-pprint x :text "unimplemented!"))
@@ -262,11 +394,14 @@
 (defmethod org-keyword :default [x]
  (render-pprint x :text "unimplemented!"))

+(defmethod org-special-block "margin-note" [{:keys [children]}]
+  [:p [:span.marginnote (strip-paragraphs children)]])
+
 #_
 (defmethod org-special-block :default [x]
  (render-pprint x :text "unimplemented!"))

 (defmethod org-link :default [{:keys [raw-link children]}]
-  [:span {:class "org-link external"}
+  [:span.org-link.external
   [:a {:href raw-link}
    (or (seq children) raw-link)]])
--- a/src/net/deertopia/doerg/repl.clj
+++ b/src/net/deertopia/doerg/repl.clj
@@ -0,0 +1,52 @@
+(ns net.deertopia.doerg.repl
+  (:require [net.deertopia.doerg.element :as element]
+            [net.deertopia.doerg.render :as render]
+            [net.deertopia.doerg.config :as cfg]
+            [clojure.java.io :as io]
+            [hiccup2.core :as h]
+            [clojure.pprint]
+            [babashka.fs :as fs]
+            [net.deertopia.doerg :as-alias doerg]))
+
+(def some-org-file
+  #_
+  "/home/msyds/org/20251228003307-prerequisite_context_in_korean.org"
+  #_
+  "/home/msyds/org/20250919114912-homepage.org"
+  #_
+  "/home/msyds/org/20251111182118-path_induction.org"
+  ;; #_
+  "/home/msyds/org/20250512144715-natural_transformation_category_theory.org"
+  #_
+  "/home/msyds/org/20251021155921-path_action.org"
+  #_
+  "test/net/deertopia/doerg/render_test/fallbacks.org"
+  #_
+  "/home/msyds/org/20250910115311-men_who_would_make_stunning_dykes.org")
+
+(defn- force-create-sym-link [path target]
+  (fs/delete-if-exists path)
+  (fs/create-sym-link path target))
+
+(defn render-html [& {:keys [src dest]
+                      :or {src some-org-file
+                           dest "/tmp/doerg-test"}}]
+  (let [resource-dir (fs/file dest "resource")]
+    (fs/create-dirs dest)
+    (fs/create-dirs resource-dir)
+    (force-create-sym-link (fs/file resource-dir "ibm-plex-web")
+                           (-> cfg/*cfg* ::doerg/ibm-plex-web))
+    (doseq [x #{"Temml-Plex.css" "tuftesque.css" "deerstar.css"}]
+      (force-create-sym-link
+       (fs/file resource-dir x)
+       (io/resource (str "net/deertopia/doerg/" x))))
+    (fs/delete-if-exists (fs/file dest "index.html"))
+    (->> src render/to-html str (spit (fs/file dest "index.html")))))
+
+(defn render-edn [& {:keys [src dest]
+                     :or {src some-org-file
+                          dest "/tmp/doerg-test/index.edn"}}]
+  (fs/create-dirs (fs/parent dest))
+  (with-open [f (io/writer dest)]
+    (binding [*out* f]
+      (-> src slurp element/read-string clojure.pprint/pprint))))
--- a/src/net/deertopia/doerg/roam.clj
+++ b/src/net/deertopia/doerg/roam.clj
@@ -0,0 +1,183 @@
+(ns net.deertopia.doerg.roam
+  (:require [babashka.fs :as fs]
+            [net.deertopia.doerg.config :as cfg]
+            [net.deertopia.doerg.elisp :as elisp]
+            [net.deertopia.doerg.slug :as slug]
+            [next.jdbc :as sql])
+  (:import (java.util UUID)))
+
+
+;;; Global database
+
+(defonce ^:dynamic *use-db-cache?* true)
+
+(defn ds []
+  (sql/get-datasource
+   {:dbtype "sqlite"
+    :dbname (-> cfg/*cfg* ::cfg/org-roam-db-path str)}))
+
+
+;;; Elisp sexp (de)serialisation
+
+(defn id [node]
+  (-> node :id))
+
+(defn slug [node]
+  (-> node :id slug/from-uuid))
+
+(defn- print-id [node]
+  (-> node id elisp/print))
+
+
+;;; Node
+
+(defrecord Node [id cache])
+
+(defn uuid-exists? [uuid]
+  (sql/execute-one! (ds)
+                    ["select 1 from nodes where id = ? limit 1"
+                     (-> uuid str elisp/print)]))
+
+(defn make-node
+  ([uuid] (make-node uuid {}))
+  ([uuid props]
+   (and (uuid-exists? uuid)
+        (->Node uuid (atom props)))))
+
+(defn- fetch-with-cache [node field fetch]
+  (if *use-db-cache?*
+    (-> (:cache node)
+        (swap! (fn [cache]
+                 (update cache field #(or % (fetch node)))))
+        (get field))
+    (fetch node)))
+
+(defn org-file [node]
+  (fetch-with-cache
+   node :org-file
+   (fn [node]
+     (when-some [r (sql/execute-one!
+                    (ds)
+                    ["select file from nodes where id = ?"
+                     (-> node :id str elisp/print)])]
+       (-> r :nodes/file elisp/read-string)))))
+
+(defn title [node]
+  (fetch-with-cache
+   node :title
+   #(when-some [r (sql/execute-one!
+                   (ds)
+                   ["select title from nodes where id = ?"
+                    (print-id %)])]
+      (-> r :nodes/title elisp/read-string))))
+
+(defprotocol GetNode
+  (get-node [this]
+    "Return the node associated with `this` or nil."))
+
+(extend-protocol GetNode
+  String
+  (get-node [this]
+    (or (some-> this slug/from-string get-node)
+        (some-> this parse-uuid get-node)
+        (throw (IllegalArgumentException.
+                "Give `get-node` a UUID or slug string plz. }:)"))))
+  java.util.UUID
+  (get-node [this]
+    (make-node this))
+  net.deertopia.doerg.slug.Slug
+  (get-node [this]
+    (-> this slug/to-uuid make-node))
+  Node
+  (get-node [this]
+    this))
+
+(comment
+  (def node (get-node "68XqhHerTWCbE--RYLEdHw"))
+  (fetch-with-cache
+   node :title
+   #(do (println "fetch")
+        (sql/execute-one! (ds) ["select title from nodes where id = ?"
+                              (elisp/print (:id %))]))))
+
+
+;;; Node operations
+
+(defn level [node]
+  (fetch-with-cache
+   node :level
+   #(-> (sql/execute-one!
+         (ds) ["select level from nodes where id = ?"
+             (print-id %)])
+        :nodes/level)))
+
+(defn top-level? [node]
+  (zero? (level node)))
+
+(defn file [node]
+  (fetch-with-cache
+   node :file
+   #(-> (sql/execute-one!
+         (ds) ["select file from nodes where id = ?"
+             (print-id %)])
+        :nodes/file
+        elisp/read-string)))
+
+(defn properties [node]
+  (fetch-with-cache
+   node :properties
+   #(-> (sql/execute-one!
+         (ds) ["select properties from nodes where id = ?"
+             (print-id %)])
+        :nodes/properties
+        elisp/read-alist)))
+
+(defn public? [node]
+  (-> node properties (get "DEERTOPIAVISIBILITY") (= "public")))
+
+(defn graph-visible? [node]
+  (#{"public" "graphonly"}
+   (-> node properties (get "DEERTOPIAVISIBILITY"))))
+
+(defn backlinks
+  "Returns a collection of nodes linking to `node`."
+  [node]
+  (for [{id :nodes/id title :nodes/title}
+        (sql/execute! (ds) ["select distinct nodes.id, nodes.title from links
+                             inner join nodes
+                             on nodes.id = links.source
+                             where links.dest = ?"
+                            (elisp/print (str (:id node)))])
+        :let [id' (elisp/read-string id)]
+        :when (-> id' parse-uuid get-node public?)]
+    (make-node id' {:title (elisp/read-string title)})))
+
+
+;;; Graph support
+
+(defn- read-string-field [n field]
+  (-> n (get field) elisp/read-string))
+
+(defn- uuid-graph-visible? [uuid]
+  (-> uuid parse-uuid get-node graph-visible?))
+
+(defn get-graph []
+  (let [nodes (sql/execute! (ds) ["select id, title from nodes"])
+        links (sql/execute!
+               (ds)
+               ["select n1.id as source, nodes.id as target from
+                   ((nodes as n1) join links on n1.id = links.source)
+                 join (nodes as n2) on links.dest = nodes.id
+                 where links.type = '\"id\"'"])]
+    {:nodes (for [n nodes
+                  :let [id (read-string-field n :nodes/id)]
+                  :when (uuid-graph-visible? id)]
+              {:id id
+               :title (read-string-field n :nodes/title)})
+     :links (for [l links
+                  :let [source (read-string-field l :nodes/source)
+                        target (read-string-field l :nodes/target)]
+                  :when (and (uuid-graph-visible? source)
+                             (uuid-graph-visible? target))]
+              {:source source
+               :target target})}))
--- a/src/net/deertopia/doerg/server.clj
+++ b/src/net/deertopia/doerg/server.clj
@@ -0,0 +1,188 @@
+(ns net.deertopia.doerg.server
+  (:require [clojure.pprint :refer [pprint]]
+            [clojure.tools.logging :as l]
+            [hiccup2.core :as hiccup]
+            [net.deertopia.doerg.html :as doerg-html]
+            [net.deertopia.doerg.config :as-alias cfg]
+            [net.deertopia.doerg.slug :as slug]
+            [net.deertopia.doerg.config :as cfg]
+            [net.deertopia.doerg.roam :as roam]
+            [org.httpkit.server :as http]
+            [reitit.coercion]
+            [reitit.coercion.spec]
+            [reitit.ring.coercion]
+            [reitit.core :as r]
+            [reitit.ring]
+            [reitit.ring.middleware.exception :as reitit-exception]
+            [ring.util.response :as response]
+            [spec-tools.spell]
+            [reitit.spec]
+            [reitit.dev.pretty]
+            [clojure.spec.alpha :as s]
+            [net.deertopia.doerg.render :as doerg-render]
+            [net.deertopia.doerg.cached-file :as cached-file]
+            [babashka.fs :as fs]
+            [aero.core :as aero]
+            [clojure.string :as str]
+            [net.deertopia.doerg :as-alias doerg]
+            [net.deertopia.doerg.config :as doerg-config]))
+
+
+;;; Routes
+
+(def homepage-slug "68XqhHerTWCbE--RYLEdHw")
+(def not-found-slug "PGDHTvUzQ62Js1Y5db-A8g")
+
+(defn hello [req]
+  (-> (hiccup/html {}
+        [:html
+         [:head
+          [:title "hello"]
+          doerg-html/charset
+          doerg-html/viewport]
+         [:body
+          [:pre
+           (with-out-str
+             (pprint req))]]])
+      str
+      response/response
+      (response/content-type "text/html")))
+
+(defn html-dir []
+  (-> cfg/*cfg* ::cfg/state-directory (fs/file "html")))
+
+(defn not-found [req]
+  (response/not-found "not found"))
+
+(defn org-file->html-file [org-file]
+  (fs/file (html-dir)
+           (-> org-file
+               fs/file-name
+               (fs/strip-ext {:ext "org"})
+               (str ".html"))))
+
+(defn slug-link [slug & contents]
+  [:a {:href (str "/n/" slug)}
+   contents])
+
+(defmethod doerg-render/org-link "id"
+  [{:keys [path raw-link children]}]
+  [:span.org-link
+   (slug-link (slug/from-uuid path)
+              (or (seq children) raw-link))
+   #_[:a {:href (str "/n/" (slug/from-uuid path))}
+    (or (seq children) raw-link)]])
+
+(defn backlinks-postamble [node]
+  [:section#backlinks
+   [:h2 "Backlinks"]
+   [:ul
+    (for [n (->> (roam/backlinks node)
+                 (sort-by (comp str/lower-case roam/title)))]
+      [:li (slug-link (roam/slug n)
+                      (roam/title n))])]])
+
+(defn node-by-slug [{{:keys [slug]} :path-params :as req}]
+  (if-some [node (some-> slug slug/from-string roam/get-node)]
+    (let [org-file (roam/org-file node)
+          html-file (org-file->html-file org-file)]
+      (cached-file/cached-file
+       :file html-file
+       :stale? (cached-file/newer-than? org-file html-file)
+       :compute #(doerg-render/to-html
+                  org-file
+                  :postamble (backlinks-postamble node)))
+      (-> (str html-file)
+          response/file-response
+          (response/content-type "text/html")))
+    (not-found req)))
+
+(defn node-by-id [req]
+  (hello req))
+
+(def exception-middleware
+  (reitit-exception/create-exception-middleware
+   (merge
+    reitit-exception/default-handlers
+    {::reitit-exception/wrap
+     (fn [handler e request]
+       (l/error e "error in fucking somwhere dude")
+       (handler e request))})))
+
+(defn handle-homepage [req]
+  (-> req
+      (assoc-in [:path-params :slug] homepage-slug)
+      node-by-slug))
+
+(defn handle-resource [{:keys [uri]}]
+  (if-some [[_ resource] (re-matches #"^/resource/ibm-plex-web/(.*)" uri)]
+    (-> resource
+        (response/file-response
+         {:root (-> doerg-config/*cfg* ::doerg/ibm-plex-web str)}))
+    (-> uri
+        (str/replace-first #"^/resource/" "")
+        (response/resource-response
+         {:root "net/deertopia/doerg/public"
+          :allow-symlinks? true}))))
+
+(defn handle-favicon [_]
+  (response/resource-response "net/deertopia/doerg/favicon.ico"))
+
+(def router
+  (reitit.ring/router
+   #{["/" #'handle-homepage]
+     ["/n/:slug" #'node-by-slug]
+     ["/id/:id" #'node-by-id]
+     ["/resource/*" #'handle-resource]
+     ["/myreq" #'hello]
+     ["/favicon.ico" #'handle-favicon]}
+   {:validate reitit.spec/validate
+    :exception reitit.dev.pretty/exception
+    :spec :reitit.spec/default-data
+    :data
+    {:coercion reitit.coercion.spec/coercion
+     :middleware [exception-middleware
+                  reitit.ring.coercion/coerce-request-middleware
+                  reitit.ring.coercion/coerce-response-middleware
+                  #_reitit.ring.coercion/coerce-exceptions-middleware]}}))
+
+
+;;; Server API
+
+(def app (reitit.ring/ring-handler router))
+
+(defonce server (atom nil))
+
+(defn stop! []
+  (when @server
+    (http/server-stop! @server {:timeout 100})
+    (reset! server nil)
+    (l/info "Stopped server")))
+
+;; For some reason, the log messages from `stop!` are not flushed
+;; before the JVM shuts dowm.  Nevertheless, the server /does/ come to
+;; a graceful halt.
+(def ^:private shutdown-hook (Thread. stop!))
+
+(defn start! []
+  (if @server
+    (throw (IllegalStateException. "Server already started"))
+    (do (reset! server
+                (http/run-server (bound-fn* #'app)
+                                 {:port (-> cfg/*cfg* ::cfg/port)
+                                  :legacy-return-value? false}))
+        ;; For some reason, the log messages are not flushed before
+        ;; the JVM shuts dowm.  Nevertheless, the server /does/ come
+        ;; to a graceful halt.
+        (try (.addShutdownHook (Runtime/getRuntime) shutdown-hook)
+             (catch IllegalArgumentException e
+               (when (not= "Hook previously registered"
+                           (ex-message e))
+                 (throw e))))
+        (l/infof "Server started on port %d"
+                 (-> cfg/*cfg* ::cfg/port)))))
+
+(defn status []
+  (if @server
+    (http/server-status @server)
+    :stopped))
--- a/src/net/deertopia/doerg/slug.clj
+++ b/src/net/deertopia/doerg/slug.clj
@@ -0,0 +1,64 @@
+(ns net.deertopia.doerg.slug
+  (:require [clojure.spec.alpha :as s]
+            [spec-tools.core :as st])
+  (:import (java.nio ByteBuffer)
+           (java.util Base64 UUID)))
+
+(defrecord Slug [slug-string]
+  Object
+  (toString [this]
+    (:slug-string this)))
+
+(defn from-string [s]
+  (try (let [decoder (Base64/getUrlDecoder)]
+         (when (= 16 (count (.decode decoder s)))
+           (Slug. s)))
+       ;; really stupid
+       (catch IllegalArgumentException _
+         nil)))
+
+(defn to-string [s]
+  (str s))
+
+(defn- coerce-to-uuid [string-or-uuid]
+  (cond (string? string-or-uuid) (UUID/fromString string-or-uuid)
+        (uuid? string-or-uuid) string-or-uuid))
+
+(defn- uuid->bytes [string-or-uuid]
+  (let [uuid (coerce-to-uuid string-or-uuid)]
+    (.array (doto (ByteBuffer/wrap (byte-array 16))
+              (.putLong (.getMostSignificantBits uuid))
+              (.putLong (.getLeastSignificantBits uuid))))))
+
+(defn- bytes->uuid [bytes]
+  (when (= (count bytes) 16)
+    (let [bb (ByteBuffer/wrap bytes)
+          high (.getLong bb)
+          low (.getLong bb)]
+      (UUID. high low))))
+
+(defn from-uuid [string-or-uuid]
+  (let [uuid (coerce-to-uuid string-or-uuid)
+        encoder (.withoutPadding (Base64/getUrlEncoder))]
+    (Slug. (.encodeToString encoder (uuid->bytes uuid)))))
+
+(defn to-uuid [slug]
+  (let [decoder (Base64/getUrlDecoder)]
+    (bytes->uuid (.decode decoder (str slug)))))
+
+(comment
+  (let [uuid #uuid "f9eab66e-7773-4b87-b854-0bfc8f563809"
+        slug (from-uuid uuid)
+        round-tripped (to-uuid slug)]
+    {:uuid uuid, :slug slug, :round-tripped round-tripped}))
+
+(defn make-slug [string]
+  (assert (try (to-uuid string)
+               (catch Throwable _
+                 nil))
+          "invalid slug")
+  (->Slug string))
+
+(s/def ::slug
+  (s/conformer #(or (some-> % from-string)
+                    ::s/invalid)))
--- a/src/net/deertopia/doerg/tex.clj
+++ b/src/net/deertopia/doerg/tex.clj
@@ -0,0 +1,62 @@
+(ns net.deertopia.doerg.tex
+  (:require [net.deertopia.doerg.tex.native :as native]
+            [net.deertopia.doerg.tex.temml :as temml]
+            [babashka.fs :as fs]
+            [clojure.string :as str]
+            [hiccup2.core :as hiccup]
+            [clojure.tools.logging :as l]
+            [clojure.tools.logging.readable :as lr]))
+
+(defn- read-and-patch-generated-svg [{:keys [file height depth]}]
+  ;; dvisvgm writes standalone SVG files, to which we need to make a
+  ;; few changes to use them inline within our HTML.
+  ;;   • XML header: Bad syntax when embedded in an HTML doc. Remove
+  ;;     it.
+  ;;   • Width and height: We override these with our own values
+  ;;     computed by `net.deertopia.doerg.tex` to ensure correct
+  ;;     positioning relative to the surrounding text. More
+  ;;     accurately, we remove the height and width attributes from
+  ;;     the SVG tag, and set the new values for height and
+  ;;     vertical-align in the style attribute
+  ;;   • Viewbox: Must be removed entirely for correct positioning.
+  (-> (slurp file)
+      (str/replace-first #"<\?xml version='1.0' encoding='UTF-8'\?>\n?" "")
+      (str/replace-first #" height=['\"][^\"']+[\"']" "")
+      (str/replace-first #" width=['\"][^\"']+[\"']" "")
+      (str/replace-first
+       #"viewBox=['\"][^\"']+[\"']"
+       (fn [s]
+         (format "%s style=\"%s\""
+                 s
+                 (format "height:%.4fem;vertical-align:%.4fem;display:inline-block"
+                         height (- depth)))))
+      ;; Stupid hack. --currentcolor on dvisvgm should be enough, but
+      ;; it doesn't get e.g. TikZ arrows.
+      (str/replace #"stroke=['\"]#000['\"]" "stroke=\"currentColor\"")))
+
+(defn render-snippets [snippet-promises]
+  (fs/with-temp-dir [svg-dir {:prefix "doerg-svg-"}]
+    (let [rendered-snippets
+          (delay (->> snippet-promises
+                      (map first)
+                      (apply native/render svg-dir)))]
+      (doseq [[snippet p] snippet-promises]
+        (try (let [temml (temml/render snippet)]
+               (->> (if (temml/erroneous-output? temml)
+                      (let [tex (get @rendered-snippets snippet)]
+                        (if (:errors tex)
+                          temml
+                          (read-and-patch-generated-svg tex)))
+                      temml)
+                    hiccup/raw (deliver p)))
+             (catch Exception e
+               (l/error e "Error in TeX thread")
+               (throw e)))))))
+
+(comment
+  (let [snippets (for [x ["\\(\\ifxetex blah \\fi\\)"
+                          "\\(\\sqrt{x^2 + y^2}\\)"]]
+                   [x (promise)])]
+    (temml/binding-worker
+      (render-snippets snippets)
+      (map #(-> % second deref) snippets))))
--- a/src/net/deertopia/doerg/tex/native.clj
+++ b/src/net/deertopia/doerg/tex/native.clj
@@ -0,0 +1,165 @@
+(ns net.deertopia.doerg.tex.native
+  "Shelling out to (Xe)LaTeX and dvisvgm. Much magic borrowed from
+  the org-latex-preview package for Emacs."
+  (:require [babashka.process :as p]
+            [net.deertopia.doerg.common :as common]
+            [clojure.java.io :as io]
+            [clojure.string :as str]
+            [clojure.tools.logging :as l]
+            [babashka.fs :as fs]
+            [net.deertopia.doerg.config :as cfg]
+            [net.deertopia.doerg :as-alias doerg])
+  (:import (java.io ByteArrayOutputStream)))
+
+(def ^:private scale-divisor 66873.46948423679)
+
+(def ^:private font-size 10)
+
+(def ^:private tightpage-regexp
+  #"Preview: Tightpage (-?\d+) *(-?\d+) *(-?\d+) *(-?\d+)")
+
+(def ^:private preview-start-regexp
+  #"! Preview: Snippet (\d+) started.")
+
+(def ^:private preview-end-regexp
+  #"(?:^Preview: Tightpage.*$)?\n! Preview: Snippet (\d+) ended.\((\d+)\+(\d+)x(\d+)\)")
+
+(defn- invoke [extra-opts & args]
+  (let [namespace (or (::ns extra-opts) (first args))
+        out-bytes (ByteArrayOutputStream.)
+        out-stream (common/tee-output-stream
+                    out-bytes
+                    (l/log-stream :info (str namespace "/out")))
+        err-stream (l/log-stream :info (str namespace "/err"))
+        opts (merge extra-opts
+                    {:out out-stream :err err-stream :continue true
+                     :shutdown p/destroy-tree
+                     :pre-start-fn (fn [{:keys [cmd]}]
+                                     (l/infof "$ %s"
+                                              (str/join " " cmd)))
+                     :exit-fn (fn [{:keys [cmd exit]}]
+                                (l/infof "%s exited w/ status %d"
+                                         (first cmd) exit))})
+        r (apply p/shell opts args)
+        out (.toString out-bytes)]
+    (-> r
+        (assoc ::out out))))
+
+(defn- parse-tightpage [latex-out]
+  (->> (re-find tightpage-regexp latex-out)
+       (drop 1)
+       (map parse-long)))
+
+(defn- compute-geometry [[tp1 tp2 tp3 tp4] [d1 d2 d3]]
+  (let [depth (/ (- d2 tp2) scale-divisor font-size)]
+    {:depth depth
+     :height (+ depth
+                (/ (+ d1 tp4)
+                   scale-divisor
+                   font-size))
+     :width (/ (+ d3 tp3 (- tp2))
+               scale-divisor
+               font-size)}))
+
+(defn- parse-latex-output [out]
+  (let [tightpage-info (parse-tightpage out)
+        m-start (re-matcher preview-start-regexp out)
+        m-end (re-matcher preview-end-regexp out)]
+    (loop [acc []]
+      (if-some [[_ snippet-ix] (re-find m-start)]
+        (let [r (re-find m-end)
+              [_ snippet-ix* _ _ _] r
+              dimensional-info (->> r (drop 2) (map parse-long))
+              errors (-> out
+                         (subs (.end m-start) (.start m-end))
+                         (str/replace-first #"[^!]*" "")
+                         str/trim)]
+          (assert (= snippet-ix snippet-ix*))
+          (recur (conj acc (-> (compute-geometry
+                                tightpage-info dimensional-info)
+                               (assoc :errors (if (empty? errors)
+                                                nil
+                                                errors))))))
+        acc))))
+
+(defn- invoke-latex [& {:keys [file output-dir]}]
+  (let [latex (-> cfg/*cfg* ::doerg/latex)]
+    (invoke
+     {:dir output-dir}
+     latex "-no-pdf" "-interaction" "nonstopmode"
+     "-output-directory" output-dir file)))
+
+(defn- invoke-dvisvgm [& {:keys [file output-dir]}]
+  (let [dvisvgm (-> cfg/*cfg* ::doerg/dvisvgm)]
+    (invoke
+     {:dir output-dir}
+     dvisvgm "--page=1-" "--optimize" "--clipjoin"
+     "--relative" "--no-fonts" "-v3" "--currentcolor"
+     "--message=processing page {?pageno}: output written to {?svgpath}"
+     "--bbox=preview" "-o" "%9p.svg" file)))
+
+(defn- snippet-file-names
+  "Return a map of TeX snippets (as strings, including the math
+  delimiters) to file names as would be output by
+  `invoke-dvisvgm`. The returned file names are relative to dvisvgm's
+  output directory."
+  [snippets]
+  (let [svgs (for [i (range)]
+               (format "%09d.svg" i))]
+    (zipmap (reverse snippets) svgs)))
+
+(defn- read-prelude []
+  (str (-> "net/deertopia/doerg/prelude.tex" io/resource slurp)
+       \newline
+       (-> "net/deertopia/doerg/native-prelude.tex" io/resource slurp)))
+
+(defn- instantiate-preview-template [snippets]
+  (let [contents (->> (for [s snippets]
+                        (format "\\begin{preview}\n%s\n\\end{preview}" s))
+                      (str/join "\n"))]
+    (-> (io/resource "net/deertopia/doerg/preview-template.tex")
+        slurp
+        (str/replace #"% \{\{(contents|preamble)}}"
+                     #(case (second %)
+                        "contents" contents
+                        "preamble" (read-prelude))))))
+
+(defn render
+  "Render a collection of `snippets` to SVGs in `output-dir` using a
+  LaTeX engine (XeLaTeX at the moment) and dvisvgm. Returns a map
+  whose keys are `snippets` and whose values are maps containing
+  geometry info, a string of errors output by LaTeX, and the path to
+  the generated SVG file. Math delimiters are *not* implicitly added
+  to each snippet."
+  [output-dir & snippets]
+  (fs/with-temp-dir [dir {:prefix "doerg-latex"}]
+    (let [preview-tex (fs/file dir "preview.tex")
+          preview-xdv (fs/file dir "preview.xdv")
+          distinct-snippets (distinct snippets)]
+      (fs/create-dirs output-dir)
+      (->> (instantiate-preview-template distinct-snippets)
+           (spit preview-tex))
+      (let [dimensions (-> (invoke-latex :output-dir dir :file preview-tex)
+                           ::out parse-latex-output)
+            _ (invoke-dvisvgm :output-dir output-dir :file preview-xdv)]
+        ;; Adorn each snippet with dimensions and errors parsed from
+        ;; LaTeX's output, and the paths to SVG files generated by
+        ;; dvisvgm.
+        (assert (= (count distinct-snippets) (count dimensions)))
+        (->> (map (fn [ix snippet dimensions]
+                    {snippet
+                     (-> dimensions
+                         (assoc
+                          :file (fs/file output-dir
+                                         (format "%09d.svg" (inc ix)))))})
+                  (range)
+                  distinct-snippets
+                  dimensions)
+             (into {}))))))
+
+(comment
+  (render "/tmp/doerg-tex-svgs"
+          "\\(c = \\sqrt{x^2 + y^2}\\)"
+          "\\(x\\)" "\\(y\\)" "\\(x\\)"
+          "\\(\\undefinedcommandlol\\)"))
+
--- a/src/net/deertopia/doerg/tex/temml.clj
+++ b/src/net/deertopia/doerg/tex/temml.clj
@@ -0,0 +1,90 @@
+(ns net.deertopia.doerg.tex.temml
+  (:require [babashka.process :as p]
+            [net.deertopia.doerg.common :as common]
+            [net.deertopia.doerg.config :as cfg]
+            [clj-cbor.core :as cbor]
+            [clojure.java.io :as io]
+            [clojure.string :as str]
+            [clojure.tools.logging :as l]
+            [babashka.fs :as fs]
+            [net.deertopia.doerg :as-alias doerg])
+  (:import (java.io ByteArrayOutputStream)))
+
+(def ^:dynamic *worker-timeout-duration*
+  "Number of milliseconds to wait before killing the external Uniorg
+  process."
+  (* 10 1000))
+
+(def ^:dynamic *worker*)
+
+;; 외부의 브로그램이 JVM resource를 사용 위해서 파일 시스템에서 써야
+;; 합니다.
+(defonce ^:private prelude-file
+  (-> (fs/create-temp-file {:prefix "doerg-prelude-"
+                            :suffix ".tex"})
+      fs/file))
+
+(defn worker []
+  (let [doerg-temml-worker (-> cfg/*cfg* ::doerg/doerg-temml-worker)]
+    (when (or (not (fs/exists? prelude-file))
+              (zero? (fs/size prelude-file)))
+      (-> "net/deertopia/doerg/prelude.tex"
+          io/resource
+          io/input-stream
+          (io/copy prelude-file)))
+    (p/process
+     {:shutdown p/destroy-tree
+      :err (l/log-stream :info "temml/err")}
+     doerg-temml-worker
+     "--preamble" prelude-file)))
+
+(defn close-worker [tw]
+  (.close (:in tw)))
+
+(defmacro with-worker [tw & body]
+  `(let [~tw (worker)]
+     (try
+       (do ~@body)
+       (finally
+         (close-worker ~tw)
+         (p/destroy-tree ~tw)))))
+
+(defmacro binding-worker [& body]
+  `(binding [*worker* (worker)]
+     (try
+       ~@body
+       (finally
+         (close-worker *worker*)))))
+
+(defn command-worker [x]
+  (cbor/encode cbor/default-codec (:in *worker*) x)
+  (.flush (:in *worker*))
+  (let [r (cbor/decode cbor/default-codec (:out *worker*))]
+    (if (string? r)
+      r
+      (throw (ex-info "bad data from temml worker"
+                      {:data r})))))
+
+(defn render-inline [s]
+  (command-worker s))
+
+(defn render-display [s]
+  (command-worker [s]))
+
+(defn render [s]
+  (let [s (str/trim s)]
+    (if-let [[_ inner] (re-matches #"(?s)\\\[(.*)\\]" s)]
+      (render-display inner)
+      (if (re-matches #"(?s)\\begin\{.+?}(.*?)\\end\{.+?}" s)
+        (render-display s)
+        (if-let [[_ inner] (re-matches #"(?s)\\\((.*)\\\)" s)]
+          (render-inline inner)
+          (throw (IllegalArgumentException.
+                  (ex-info
+                   (str "`net.deertopia.doerg.tex.temml` argument should"
+                        " be enclosed in math delimiters.")
+                   {:arg s}))))))))
+
+;; hackky....
+(defn erroneous-output? [s]
+  (re-find #"(#b22222|temml-error)" s))
--- a/test-emacs.nix
+++ b/test-emacs.nix
@@ -0,0 +1,10 @@
+{ emacsPackages
+, symlinkJoin
+, writeScriptBin
+, lib
+}:
+
+let emacs = emacsPackages.emacsWithPackages (epkgs: [ epkgs.org-roam ]);
+in writeScriptBin "test-emacs" ''
+  exec ${lib.getExe emacs} "$@"
+''
--- a/test/net/deertopia/doerg/common_test.clj
+++ b/test/net/deertopia/doerg/common_test.clj
@@ -0,0 +1,32 @@
+(ns net.deertopia.doerg.common-test
+  (:require [net.deertopia.doerg.common :as sut]
+            [babashka.process :as p]
+            [clojure.test :as t]))
+
+(defn sleep-vs-timeout [& {:keys [sleep timeout]}]
+  (sut/deref-with-timeout
+   (p/process "sleep" (format "%ds" sleep))
+   (* timeout 1000)))
+
+;; Ideally we would test the following property:
+;;
+;;   For natural numbers n and m, evaluating the form
+;;     (sut/deref-with-timeout
+;;       (p/process "sleep" (format "%ds" n))
+;;       (* m 1000))
+;;   will throw an exception iff n < m (probably with some margin of
+;;   error lol).
+;;
+;; But, this is not something that we want to run dozens-to-hundreds
+;; of times. }:p
+
+(t/deftest long-sleep-vs-short-timeout
+  (t/testing "long sleep vs. short timeout"
+    (t/is (thrown-with-msg?
+           Exception #".*timed out.*"
+           (sleep-vs-timeout :sleep 5 :timeout 1)))))
+
+(t/deftest short-sleep-vs-long-timeout
+  (t/testing "short sleep vs. long timeout"
+    (t/is (instance? babashka.process.Process
+                     (sleep-vs-timeout :sleep 1 :timeout 5)))))
--- a/test/net/deertopia/doerg/config_test.clj
+++ b/test/net/deertopia/doerg/config_test.clj
@@ -0,0 +1,9 @@
+(ns net.deertopia.doerg.config-test
+  (:require [clojure.test :as t]
+            [net.deertopia.doerg.config :as cfg]))
+
+(defn test-config-fixture
+  "`clojure.test` fixture to run tests with the :test configuration."
+  [f]
+  (binding [cfg/*cfg* (cfg/read-config cfg/sources :profile :test)]
+    (f)))
--- a/test/net/deertopia/doerg/element_test.clj
+++ b/test/net/deertopia/doerg/element_test.clj
@@ -0,0 +1,115 @@
+(ns net.deertopia.doerg.element-test
+  (:require [net.deertopia.doerg.element :as sut]
+            [babashka.process :as p]
+            [clojure.test :as t]
+            [clojure.zip :as z]
+            [clojure.java.io :as io]
+            [com.rpl.specter :as sp]))
+
+(defn- first-child-of-type [parent type]
+  (some #(and (sut/of-type? % type) %) (:children parent)))
+
+(defn- parse-resource [path]
+  (-> (str "net/deertopia/doerg/element_test/" path)
+      io/resource slurp
+      (sut/read-string)))
+
+(t/deftest known-greater-elements
+  (t/testing "known greater elements satisfy `greater-element?`"
+    (let [root (parse-resource "greater-elements.org")
+          section (->> root
+                       (sp/select [sut/children-walker
+                                   #(sut/of-type? % "section")])
+                       second)
+          headline (first-child-of-type section "headline")
+          headline-text (first-child-of-type headline "text")
+          paragraph (first-child-of-type section "paragraph")
+          paragraph-text (first-child-of-type paragraph "text")]
+      (t/is (sut/greater-element? root))
+      (t/is (sut/greater-element? section))
+      (t/is (sut/greater-element? headline))
+      (t/is (not (sut/greater-element? headline-text)))
+      (t/is (sut/greater-element? paragraph))
+      (t/is (not (sut/greater-element? paragraph-text))))))
+
+(defn- first-paragraph-belongs-to-first-section? [doc]
+  (let [first-paragraph (sp/select-first [sut/postorder-walker
+                                          #(sut/of-type? % "paragraph")]
+                                         doc)
+        first-section (sp/select-first [sut/postorder-walker
+                                        #(sut/of-type? % "section")]
+                                       doc)]
+    (if (and first-paragraph first-section)
+      (boolean (some #(= % first-paragraph)
+                     (:children first-section)))
+      true)))
+
+(t/deftest first-paragraph-under-first-section
+  (t/is (-> (parse-resource "first-paragraph-under-first-section.org")
+            first-paragraph-belongs-to-first-section?)))
+
+(t/deftest first-paragraph-under-heading
+  (t/is (-> (parse-resource "first-paragraph-under-heading.org")
+            first-paragraph-belongs-to-first-section?
+            not)))
+
+(defn- walk-types [type & types]
+  [sut/postorder-walker #(apply sut/of-type? % type types)])
+
+(t/deftest paragraph-ending-with-latex
+  (let [doc (parse-resource "paragraph-ending-with-latex.org")
+        type (-> (sp/select-first [(walk-types "paragraph")
+                                   (sp/must :children)
+                                   sp/LAST]
+                                  doc)
+                 sut/type)]
+    (t/is (= "latex-environment" type))))
+
+(t/deftest paragraph-surrounding-latex
+  (let [doc (parse-resource "paragraph-surrounding-latex.org")
+        children (->> doc
+                      (sp/select-first [(walk-types "paragraph")])
+                      :children
+                      (map sut/type))]
+    (t/is (= ["text" "latex-environment" "text"]
+             children))))
+
+(t/deftest paragraph-ending-in-bold-surrounding-latex
+  (let [doc (parse-resource "paragraph-ending-in-bold-surrounding-latex.org")
+        children (->> doc
+                      (sp/select-first [(walk-types "paragraph")])
+                      :children
+                      (map sut/type))]
+    (t/is (= ["text" "bold" "latex-environment" "text"]
+             children))))
+
+(t/deftest paragraph-with-multiple-latex
+  (let [doc (parse-resource "paragraph-with-multiple-latex.org")
+        paragraphs (sp/select (walk-types "paragraph") doc)]
+    (t/is (= 2 (count paragraphs)))
+    (let [[p₁ p₂] paragraphs]
+      (doseq [[p ts] [[p₁ ["text" "latex-environment"
+                           "text" "latex-environment"]]
+                      [p₂ ["text" "latex-environment"
+                           "text" "latex-environment" "text"]]]]
+        (t/is (= ts (sp/select [(sp/must :children)
+                                sp/ALL (sp/view sut/type)] p)))))))
+
+(t/deftest paragraph-with-separate-latex
+  (let [doc (parse-resource "paragraph-with-separate-latex.org")
+        cs (sp/select [(walk-types "section")
+                       (sp/must :children)
+                       sp/ALL
+                       (sp/view sut/type)]
+                      doc)]
+    (t/is (= ["paragraph" "latex-environment"] cs))))
+
+(t/deftest paragraph-surrounding-separate-latex
+  (let [doc (parse-resource "paragraph-surrounding-separate-latex.org")
+        cs (sp/select [(walk-types "section")
+                       (sp/must :children)
+                       sp/ALL
+                       (sp/view sut/type)]
+                      doc)]
+    (t/is (= ["paragraph" "latex-environment" "paragraph"] cs))))
+
--- a/doerg/test/net/deertopia/doerg/element_test/first-paragraph-under-first-section.org
+++ b/doerg/test/net/deertopia/doerg/element_test/first-paragraph-under-first-section.org
--- a/doerg/test/net/deertopia/doerg/element_test/first-paragraph-under-heading.org
+++ b/doerg/test/net/deertopia/doerg/element_test/first-paragraph-under-heading.org
--- a/doerg/test/net/deertopia/doerg/element_test/greater-elements.org
+++ b/doerg/test/net/deertopia/doerg/element_test/greater-elements.org
--- a/test/net/deertopia/doerg/element_test/paragraph-ending-in-bold-surrounding-latex.org
+++ b/test/net/deertopia/doerg/element_test/paragraph-ending-in-bold-surrounding-latex.org
@@ -0,0 +1,7 @@
+#+title: bold-final paragraph surrounding latex
+
+first part of *paragraph*
+\begin{equation*}
+\text{some \LaTeX \}:)}
+\end{equation*}
+last part of paragraph
--- a/test/net/deertopia/doerg/element_test/paragraph-ending-with-latex.org
+++ b/test/net/deertopia/doerg/element_test/paragraph-ending-with-latex.org
@@ -0,0 +1,7 @@
+#+title: paragraph ending with latex
+
+here is the paragraph,
+\begin{align*}
+\text{and here} &
+\\ & \text{is the \LaTeX}
+\end{align*}
--- a/test/net/deertopia/doerg/element_test/paragraph-surrounding-latex.org
+++ b/test/net/deertopia/doerg/element_test/paragraph-surrounding-latex.org
@@ -0,0 +1,7 @@
+#+title: paragraph surrounding latex
+
+first part of paragraph
+\begin{equation*}
+\text{some \LaTeX \}:)}
+\end{equation*}
+last part of paragraph
--- a/test/net/deertopia/doerg/element_test/paragraph-surrounding-separate-latex.org
+++ b/test/net/deertopia/doerg/element_test/paragraph-surrounding-separate-latex.org
@@ -0,0 +1,9 @@
+#+title: paragraphs surrounding separate latex
+
+a paragraph!
+
+\begin{gather*}
+\text{and now, an unrelated latex fragment}
+\end{gather*}
+
+more unrelated text
--- a/test/net/deertopia/doerg/element_test/paragraph-with-multiple-latex.org
+++ b/test/net/deertopia/doerg/element_test/paragraph-with-multiple-latex.org
@@ -0,0 +1,24 @@
+#+title: paragraph with multiple latex environments
+
+* interleaved
+
+first part of paragraph
+\begin{equation*}
+\text{first \LaTeX\ environment}
+\end{equation*}
+second part of paragraph
+\begin{equation*}
+\text{second \LaTeX\ environment}
+\end{equation*}
+
+* fenceposted
+
+first fencepost
+\begin{equation*}
+\text{first fenceposted \LaTeX\ environment}
+\end{equation*}
+second fencepost
+\begin{equation*}
+\text{second fenceposted \LaTeX\ environment}
+\end{equation*}
+third fencepost
--- a/test/net/deertopia/doerg/element_test/paragraph-with-separate-latex.org
+++ b/test/net/deertopia/doerg/element_test/paragraph-with-separate-latex.org
@@ -0,0 +1,7 @@
+#+title: paragraph with separate latex
+
+a paragraph!
+
+\begin{gather*}
+\text{and now, an unrelated latex fragment}
+\end{gather*}
--- a/test/net/deertopia/doerg/org-roam-db-sync.el
+++ b/test/net/deertopia/doerg/org-roam-db-sync.el
@@ -0,0 +1,8 @@
+#!/usr/bin/env -S emacs -Q -x
+
+(require 'org-roam)
+
+(setq org-roam-directory (expand-file-name (car command-line-args-left)))
+(setq org-roam-db-location (expand-file-name (cadr command-line-args-left)))
+
+(org-roam-db-sync)
--- a/test/net/deertopia/doerg/render_test.clj
+++ b/test/net/deertopia/doerg/render_test.clj
@@ -0,0 +1,60 @@
+(ns net.deertopia.doerg.render-test
+  (:require [net.deertopia.doerg.render :as sut]
+            [net.deertopia.doerg.element :as element]
+            [net.deertopia.doerg.tex.temml :as temml]
+            [net.deertopia.doerg.tex.native :as native]
+            [com.rpl.specter :as sp]
+            [clojure.edn :as edn]
+            [clojure.test :as t]
+            [clojure.java.io :as io]
+            [clojure.string :as str]))
+
+;; Stupid and hacky.
+(defn mathml? [s]
+  (str/starts-with? s "<math"))
+
+;; Also stupid and hacky. }:)
+(defn svg? [s]
+  (some? (re-matches #"(?s)(<!--.*?-->\n)<svg.*" s)))
+
+(defn read-resource [s]
+  (let [p (-> (format "net/deertopia/doerg/render_test/%s" s)
+              io/resource slurp)]
+    (cond (str/ends-with? s ".edn") (edn/read-string p)
+          (str/ends-with? s ".org") (element/read-string p))))
+
+(t/deftest latex-fallbacks
+  (t/testing "LaTeX fallback behaviour"
+    (let [doc (temml/binding-worker
+                (-> "fallbacks.org" read-resource sut/render-tex-snippets))
+          snippets (->> doc
+                        (sp/select
+                         [element/postorder-walker
+                          #(element/of-type?
+                            % "latex-fragment" "latex-environment")
+                          (sp/view #(-> % ::sut/rendered deref str))]))
+          expectations (-> "fallbacks.edn" read-resource)]
+      (doall (map (fn [s e]
+                    (let [mathml (mathml? s)
+                          svg (svg? s)]
+                      (assert
+                       (not= mathml svg)
+                       "`mathml?` and `svg?` should be mutually-exclusive.")
+                      (case e
+                        :mathml (t/is mathml)
+                        :svg (t/is svg))))
+                  snippets expectations)))))
+
+(t/deftest latex-laziness
+  (t/testing "LaTeX laziness"
+    (let [ex (Exception. "you're supposed to be lazy!")
+          bad (fn [& _] (throw ex))
+          doc (read-resource "latexless.org")
+          r (try (with-redefs-fn {#'native/render bad
+                                  #'temml/render bad}
+                   #(sut/render-tex-snippets doc))
+                 (catch Exception e
+                   (if (= e ex)
+                     false
+                     (throw e))))]
+      (t/is r))))
--- a/test/net/deertopia/doerg/render_test/fallbacks.edn
+++ b/test/net/deertopia/doerg/render_test/fallbacks.edn
@@ -0,0 +1,7 @@
+[:mathml
+ :mathml
+ :mathml
+ :mathml
+ :svg
+ :mathml
+ :svg]
--- a/test/net/deertopia/doerg/render_test/fallbacks.org
+++ b/test/net/deertopia/doerg/render_test/fallbacks.org
@@ -0,0 +1,20 @@
+#+title: aghhh
+
+- blah blah prose prose prose \(c = \sqrt{x^2 + y^2}\), alal.
+- this thing is \(x\)
+- another thing \(y\)
+- this thing is also \(x\) and uses the same svg
+- ifxetex: \(\ifxetex alalala\fi \)
+
+balahahahahahaj
+\begin{align*}
+x &= y
+\\ &= zzz.
+\end{align*}
+awawawa
+
+cool ass tbale
+\begin{tabular}{|c|c|c|}
+blah & glah & zlah
+\\ abdwa & www &dj
+\end{tabular}
--- a/test/net/deertopia/doerg/render_test/latexless.org
+++ b/test/net/deertopia/doerg/render_test/latexless.org
@@ -0,0 +1,3 @@
+#+title: 이 파일은 LaTeX 코드가 포함되지 않습니다.
+
+🦌!
--- a/test/net/deertopia/doerg/roam-test/20260325083230-awesome_file.org
+++ b/test/net/deertopia/doerg/roam-test/20260325083230-awesome_file.org
@@ -0,0 +1,7 @@
+:PROPERTIES:
+:ID:       23ee464d-b13e-4649-826f-622d0edef24e
+:DeertopiaVisibility: public
+:END:
+#+title: awesome file
+
+wow!
--- a/test/net/deertopia/doerg/roam-test/404.org
+++ b/test/net/deertopia/doerg/roam-test/404.org
@@ -0,0 +1,23 @@
+:PROPERTIES:
+:ID:       3c60c74e-f533-43ad-89b3-563975bf80f2
+:DeertopiaVisibility: public
+:END:
+#+title: page not found
+
+the page you're looking for doesn't exist, or you lack the permissions necessary to view it........
+
+#+attr_doerg: :center? true :alt "A doe sitting and sobbing" :scale 1.4
+#+begin_example
+  \{ /    \ }/
+   \/ .  . \/
+ .. \Y`  `Y/ ..
+ \ `\|~==~|/' /
+  '". T T  ."`
+     {`^' }
+      |  |
+     /</3 \
+    ||    ||
+    _| || |_
+.,_) ) || ( (_,.
+|__  /_||_\  __|
+#+end_example
--- a/test/net/deertopia/doerg/roam-test/categorytheory.org
+++ b/test/net/deertopia/doerg/roam-test/categorytheory.org
@@ -0,0 +1,7 @@
+:PROPERTIES:
+:ID:       90f23e03-f746-42cb-862f-1af2d4bde3cc
+:DeertopiaVisibility: public
+:END:
+#+title: Category theory
+
+*Category theory* is the mathematical study of categories and functors between them.
--- a/test/net/deertopia/doerg/roam-test/fake-homepage.org
+++ b/test/net/deertopia/doerg/roam-test/fake-homepage.org
@@ -0,0 +1,7 @@
+:PROPERTIES:
+:ID:       ebc5ea84-77ab-4d60-9b13-ef9160b11d1f
+:DeertopiaVisibility: public
+:END:
+#+title: deertopia.net!!!!!!!!
+
+homeee
--- a/test/net/deertopia/doerg/roam-test/monoepi.org
+++ b/test/net/deertopia/doerg/roam-test/monoepi.org
@@ -0,0 +1,22 @@
+:PROPERTIES:
+:ID:       897bfc9d-94ce-4c58-8d21-93f13372b17b
+:END:
+#+title: Monomorphisms and epimorphisms
+
+In [[id:90f23e03-f746-42cb-862f-1af2d4bde3cc][category theory]], *monomorphisms* and *epimorphisms* are types of cancellative morphisms generalising injective and surjective functions, respectively.[fn:1]
+
+\begin{tikzcd}
+% https://q.uiver.app/#q=WzAsNixbMCwwLCJYIl0sWzEsMCwiWSJdLFsyLDAsIloiXSxbMSwxLCJZIl0sWzIsMSwiWiJdLFswLDEsIlgiXSxbMCwxLCJnXzEiLDAseyJvZmZzZXQiOi0yfV0sWzAsMSwiZ18yIiwyLHsib2Zmc2V0IjoyfV0sWzEsMiwiZiIsMl0sWzMsNCwiZ18xIiwwLHsib2Zmc2V0IjotMn1dLFszLDQsImdfMiIsMix7Im9mZnNldCI6Mn1dLFs1LDMsImYiLDJdXQ==
+	X & Y & Z \\
+	X & Y & Z
+	\arrow["{g_1}", shift left=2, from=1-1, to=1-2]
+	\arrow["{g_2}"', shift right=2, from=1-1, to=1-2]
+	\arrow["f"', from=1-2, to=1-3]
+	\arrow["f"', from=2-1, to=2-2]
+	\arrow["{g_1}", shift left=2, from=2-2, to=2-3]
+	\arrow["{g_2}"', shift right=2, from=2-2, to=2-3]
+\end{tikzcd}
+
+* Footnotes
+
+[fn:1] blahahahahah blah blah
--- a/test/net/deertopia/doerg/roam_test.clj
+++ b/test/net/deertopia/doerg/roam_test.clj
@@ -0,0 +1,63 @@
+(ns net.deertopia.doerg.roam-test
+  (:require [net.deertopia.doerg.roam :as sut]
+            [clojure.test :as t]
+            [clojure.java.io :as io]
+            [net.deertopia.doerg.config :as cfg]
+            [babashka.fs :as fs]
+            [babashka.process :as p]
+            [net.deertopia.doerg.config-test :refer [test-config-fixture]]
+            [next.jdbc :as sql]
+            [clojure.string :as str]
+            [net.deertopia.doerg.elisp :as elisp]
+            [com.rpl.specter :as sp]))
+
+(def org-roam-directory
+  (fs/file "test/net/deertopia/doerg/roam-test"))
+
+(defn org-roam-db-sync [db-file]
+  (let [script-file (fs/create-temp-file {:prefix "org-roam-db-sync-"
+                                          :suffix ".el"})
+        emacs (->> [(System/getenv "EMACS") "test-emacs" "emacs"]
+                   (some #(some-> % fs/which)))]
+    (io/copy (-> "net/deertopia/doerg/org-roam-db-sync.el"
+                 io/resource io/reader)
+             (fs/file script-file))
+    (p/shell {:out :string :err :string}
+             emacs "-Q" "-x" script-file org-roam-directory db-file)
+    (fs/delete script-file)))
+
+(defn test-db-fixture [f]
+  (let [db-file (-> cfg/*cfg* ::cfg/org-roam-db-path)]
+    (assert (->> db-file fs/canonicalize str
+                 (re-matches #"^/(build|tmp)/.*"))
+            (format "i'm scared to delete a non-test database... %s"
+                    (str db-file)))
+    (fs/delete-if-exists db-file)
+    (org-roam-db-sync db-file)
+    (f)
+    (fs/delete db-file)))
+
+(t/use-fixtures
+  :once (t/join-fixtures [test-config-fixture test-db-fixture]))
+
+
+
+(t/deftest all-nodes-exist
+  (let [known-node-files (->> (fs/list-dir org-roam-directory)
+                              (map (comp str fs/canonicalize))
+                              (into #{}))
+        database-nodes
+        (->> (sql/execute!
+              (sut/ds) ["select file, id from nodes"])
+             (map (fn [x]
+                    {:file (-> x :nodes/file elisp/read-string)
+                     :id (-> x :nodes/id elisp/read-string parse-uuid)}))
+             (into #{}))]
+    (t/testing "database has a node for each file?"
+      (t/is (= known-node-files (sp/transform
+                                 [sp/ALL]
+                                 #(:file %)
+                                 database-nodes))))
+    (t/testing "each uuid exists?"
+      (t/is (every? (comp sut/uuid-exists? :id)
+                    database-nodes)))))
--- a/test/net/deertopia/doerg/server_test.clj
+++ b/test/net/deertopia/doerg/server_test.clj
@@ -0,0 +1,52 @@
+(ns net.deertopia.doerg.server-test
+  (:require [net.deertopia.doerg.server :as sut]
+            [reitit.ring]
+            [clojure.test :as t]
+            [net.deertopia.doerg.config :as cfg]
+            [net.deertopia.doerg.roam :as roam]
+            [babashka.fs :as fs]
+            [clojure.java.io :as io]
+            [net.deertopia.doerg.roam-test :refer [test-db-fixture]]
+            [net.deertopia.doerg.config-test :refer [test-config-fixture]]))
+
+(t/use-fixtures
+  :once (t/join-fixtures [test-config-fixture test-db-fixture]))
+
+(defn with-server [f]
+  (let [was-already-running? (= :running (sut/status))]
+    (when-not was-already-running?
+      (sut/start!))
+    (f)
+    (when-not was-already-running?
+      (sut/stop!))))
+
+(defn get-sut [uri]
+  (sut/app {:request-method :get
+            :uri uri}))
+
+
+
+(t/deftest server-is-running
+  ;; 서버는 벌써 시작한 다음에 이 테스트 하면 잘못됩니다.
+  ;; (assert (not= :running (sut/status)))
+  (with-server
+    (fn []
+      (t/is (= :running (sut/status)))
+      (t/is (->> (format "http://localhost:%d"
+                         (::cfg/port cfg/*cfg*))
+                   slurp
+                   string?)))))
+
+(t/deftest get-nonexistent-node
+  (let [slug "3Lxvxnb0QrivoU3DX-l_5w"]
+    (assert (nil? (roam/make-node slug)))
+    (t/is (= 404
+             (-> (str "/n/" slug)
+                 get-sut :status)))))
+
+(t/deftest get-homepage
+  (let [resp (-> (str "/n/" sut/homepage-slug)
+                 get-sut)]
+    (t/is (= 200 (:status resp)))
+    (t/is (= (-> "/" get-sut :body)
+             (-> resp :body)))))
--- a/tests.edn
+++ b/tests.edn
@@ -0,0 +1 @@
+#kaocha/v1 {}
--- a/vendor/default.nix
+++ b/vendor/default.nix
@@ -1,8 +0,0 @@
-{ fetchzip
-, fetchurl
-, callPackage
-}:
-
-{
-  ibm-plex-web = callPackage ./ibm-plex-web.nix {};
-}
Author	SHA1	Message	Date
Madeleine Sydney Ślaga	dcaac98252	refactor: doerg는 publisher와 결합 All checks were successful build / build (push) Successful in 5s Details	2026-04-03 13:31:16 -06:00
Madeleine Sydney Ślaga	5ca59fdb5e	feat: 많은 테스트... All checks were successful build / build (push) Successful in 45s Details	2026-04-02 13:26:38 -06:00
Madeleine Sydney Ślaga	55fa2473a2	feat: backlinks All checks were successful build / build (push) Successful in 27s Details	2026-03-30 15:39:20 -06:00
Madeleine Sydney Ślaga	9349293684	feat: text art All checks were successful build / build (push) Successful in 1m19s Details	2026-03-28 23:05:02 -06:00
Madeleine Sydney Ślaga	4d310afa18	fix: css	2026-03-28 23:04:38 -06:00
Madeleine Sydney Ślaga	7634303b13	feat: epigraphs All checks were successful build / build (push) Successful in 5s Details 해결 #11	2026-03-28 22:24:12 -06:00
Madeleine Sydney Ślaga	cf242b778d	feat: 테스트 데이터베이스 All checks were successful build / build (push) Successful in 5s Details 해결 #28	2026-03-28 13:19:42 -06:00
Madeleine Sydney Ślaga	9cc0def4d5	feat: html 캐시 All checks were successful build / build (push) Successful in 4s Details	2026-03-27 19:42:51 -06:00
Madeleine Sydney Ślaga	e02b77e1e4	fix: temml prelude All checks were successful build / build (push) Successful in 4s Details	2026-03-24 16:53:14 -06:00
Madeleine Sydney Ślaga	c74e36d8af	fix: throw when temml output is not string	2026-03-24 16:52:41 -06:00
Madeleine Sydney Ślaga	36e328915e	chore: flake-utils를 안 사용하는데 뺌 All checks were successful build / build (push) Successful in 6s Details	2026-03-24 16:03:24 -06:00
Madeleine Sydney Ślaga	b607ab8cae	chore: 청소함 All checks were successful build / build (push) Successful in 1m10s Details	2026-03-24 15:56:09 -06:00
Madeleine Sydney Ślaga	fb2974bb21	feat: 서버는 기초의 테스트 더함 All checks were successful build / build (push) Successful in 4s Details	2026-03-24 15:50:08 -06:00
Madeleine Sydney Ślaga	79735cc0ba	fix: config에서 포트를 읽음 All checks were successful build / build (push) Successful in 4s Details	2026-03-23 09:08:32 -06:00
Madeleine Sydney Ślaga	931f6f9006	fix: fix elisp shadowing clojure.core warnings All checks were successful build / build (push) Successful in 4s Details	2026-03-23 08:48:34 -06:00
Madeleine Sydney Ślaga	811d07de39	refactor: config.edn → default-config.edn All checks were successful build / build (push) Successful in 30s Details	2026-03-23 08:43:33 -06:00
Madeleine Sydney Ślaga	29d5cdc85a	feat: o pona e ijo Config kepeken lipu Library All checks were successful build / build (push) Successful in 5s Details	2026-03-23 08:40:50 -06:00
Madeleine Sydney Ślaga	d4ff27ada4	feat: very primitive publisher All checks were successful build / build (push) Successful in 5s Details	2026-03-21 20:37:16 -06:00
Madeleine Sydney Ślaga	5bca7890c4	feat: css hyphenation All checks were successful build / build (push) Successful in 43s Details	2026-03-19 15:46:25 -06:00
Madeleine Sydney Ślaga	befa724551	fix: native latex prelude	2026-03-19 15:46:07 -06:00
Madeleine Sydney Ślaga	2b80c15cc8	chore: cleanup All checks were successful build / build (push) Successful in 42s Details	2026-03-19 14:47:01 -06:00
Madeleine Sydney Ślaga	7805de06f2	fix: latex paragraphs again lol All checks were successful build / build (push) Successful in 4s Details	2026-03-19 14:45:53 -06:00
Madeleine Sydney Ślaga	1629efb378	fix: latex-environment belongs to paragraph All checks were successful build / build (push) Successful in 5s Details wip: feat: org-element specs	2026-03-17 21:07:33 -06:00
Madeleine Sydney Ślaga	2198b5f409	fix: ???? All checks were successful build / build (push) Successful in 4s Details	2026-03-05 15:59:55 -07:00
Madeleine Sydney Ślaga	bc5138086d	fix: remove debug code again idiot Some checks failed build / build (push) Failing after 19s Details	2026-03-05 15:58:14 -07:00
Madeleine Sydney Ślaga	6d1d94194b	fix: display math scales with text All checks were successful build / build (push) Successful in 44s Details	2026-03-05 15:51:13 -07:00
Madeleine Sydney Ślaga	fd9322740d	fix: remove debug code All checks were successful build / build (push) Successful in 39s Details	2026-03-05 15:11:26 -07:00
Madeleine Sydney Slaga	e5b47898a5	Merge pull request 'fix: tikz svgs' (#10 ) from fix-tikz-svgs into main All checks were successful build / build (push) Successful in 5s Details Reviewed-on: #10	2026-03-05 15:10:46 -07:00
Madeleine Sydney Ślaga	26410655d9	fix: tikz svgs All checks were successful build / build (push) Successful in 43s Details Fixes #9	2026-03-05 15:09:37 -07:00
Madeleine Sydney Ślaga	faa84f986d	doc: doerg-temml-worker All checks were successful build / build (push) Successful in 1m24s Details	2026-03-05 11:47:59 -07:00
Madeleine Sydney Ślaga	9ec8bca383	feat: warning message on timeout All checks were successful build / build (push) Successful in 40s Details	2026-03-05 09:52:29 -07:00
Madeleine Sydney Slaga	d946c57bff	Merge pull request 'fix: namespace error lol' (#8 ) from ns-error into main All checks were successful build / build (push) Successful in 4s Details Reviewed-on: #8	2026-03-05 09:49:24 -07:00
Madeleine Sydney Ślaga	7c4ad64d58	fix: increase snippet timeout to 20s All checks were successful build / build (push) Successful in 5s Details	2026-03-05 09:49:04 -07:00
Madeleine Sydney Ślaga	56742cf72d	fix: namespace error lol Some checks failed build / build (push) Failing after 1m1s Details	2026-03-05 09:36:49 -07:00
Madeleine Sydney Ślaga	a92b387e63	refactor: more. Some checks failed build / build (push) Failing after 3h13m17s Details	2026-03-02 15:18:35 -07:00
Madeleine Sydney Ślaga	98c106b3cf	fix: trim temml/render input	2026-03-02 15:17:57 -07:00
Madeleine Sydney Ślaga	b336aa873e	refactor: more cleanup >_< Some checks failed build / build (push) Has been cancelled Details	2026-03-02 14:59:11 -07:00
Madeleine Sydney Ślaga	e49f847f20	refactor: move texslop into tex module Some checks failed build / build (push) Has been cancelled Details	2026-03-02 14:53:07 -07:00
Madeleine Sydney Ślaga	ec4ad7c9c2	fix: set doerg-parser in config	2026-03-02 14:12:52 -07:00
Madeleine Sydney Ślaga	762324d9f0	fix: config spec	2026-03-02 14:06:50 -07:00
Madeleine Sydney Ślaga	c97b7ab0dc	chore: clean doerg sources All checks were successful build / build (push) Successful in 5s Details	2026-03-01 12:18:14 -07:00
Madeleine Sydney Ślaga	c45852097b	chore: package.nix → default.nix All checks were successful build / build (push) Successful in 5s Details	2026-03-01 12:08:21 -07:00
Madeleine Sydney Ślaga	74e48264ea	chore: clean up serialise Some checks failed build / build (push) Has been cancelled Details	2026-03-01 11:56:06 -07:00
Madeleine Sydney Ślaga	283c18fd9e	chore: remove demo action All checks were successful build / build (push) Successful in 4s Details	2026-03-01 11:52:58 -07:00
Madeleine Sydney Slaga	570fca833d	Merge pull request 'tex' (#7 ) from tex into main All checks were successful build / build (push) Successful in 4s Details Gitea Actions Demo / build (push) Successful in 4s Details Gitea Actions Demo / Explore-Gitea-Actions (push) Successful in 1s Details Reviewed-on: #7	2026-03-01 11:50:07 -07:00
Madeleine Sydney Ślaga	eb53516a2d	feat: build on push All checks were successful build / build (push) Successful in 57s Details Gitea Actions Demo / build (push) Successful in 4s Details Gitea Actions Demo / Explore-Gitea-Actions (push) Successful in 1s Details	2026-03-01 11:46:40 -07:00
Madeleine Sydney Ślaga	8b2fb7a010	refactor: rename doerg-tex → doerg-temml-worker	2026-03-01 11:46:22 -07:00
Madeleine Sydney Ślaga	6ef81a4a45	fix: nix stuff and config	2026-03-01 11:46:22 -07:00
Madeleine Sydney Ślaga	17e61aabc8	fix: config spec	2026-03-01 11:46:22 -07:00
Madeleine Sydney Ślaga	c34b239d01	feat: kaocha	2026-03-01 11:46:22 -07:00
Madeleine Sydney Ślaga	de96a6245b	fix: align display math	2026-03-01 11:46:22 -07:00
Madeleine Sydney Ślaga	c077186c10	feat: tests	2026-03-01 11:46:22 -07:00
Madeleine Sydney Ślaga	c0a69bdbed	feat: to-html	2026-03-01 11:44:13 -07:00
Madeleine Sydney Ślaga	99bf9aae03	refactor: split tex modules	2026-03-01 11:44:13 -07:00
Madeleine Sydney Ślaga	18350f6600	fix: render-temml	2026-03-01 11:44:13 -07:00
Madeleine Sydney Ślaga	5c92dc153c	fix: temml css	2026-03-01 11:44:13 -07:00
Madeleine Sydney Ślaga	66586e6239	refactor: split up render-temml	2026-03-01 11:44:13 -07:00
Madeleine Sydney Ślaga	49990228c9	feat: xelatex rendering	2026-03-01 11:44:02 -07:00
Madeleine Sydney Ślaga	651ed4f26c	feat: tex rendering via temml	2026-02-22 18:40:36 -07:00
Madeleine Sydney Ślaga	a26df4011a	margin notes	2026-02-16 03:40:52 -07:00
Madeleine Sydney Ślaga	71b370147e	feat: subscript superscript	2026-02-09 17:53:21 -07:00
Madeleine Sydney Ślaga	703bcff905	feat: more sane placeholders	2026-02-09 17:53:06 -07:00
Madeleine Sydney Ślaga	3fa63d03d8	feat: ignore comments	2026-02-09 17:49:54 -07:00
Madeleine Sydney Ślaga	98c0be72e0	different placeholders for unimplemented elements	2026-02-09 17:44:49 -07:00
				`@@ -0,0 +1 @@`
				`((nil . ((cider-clojure-cli-aliases . ":dev:test"))))`