feat(emacs): Tecosaur LaTeX preview

hosts/nixos-testbed/configuration.nix

@@ -11,49 +11,6 @@
     users.users = [
       "lain"
     ];
-
-    impermanence = {
-      enable = true;
-      directories = [
-        # "Warning: Neither /var/lib/nixos nor any of its parents are persisted.
-        # This means all users/groups without specified uids/gids will have them
-        # reassigned on reboot."
-        "/var/lib/nixos"
-        # We don't want to have different ssh keys on reboot, because ssh keys
-        # are expected to consistently identify machines... I think.  I mostly
-        # just think it's annoying to edit ~/.ssh/known_hosts all the time.
-        "/etc/ssh"
-      ];
-      rollback = {
-        enable = true;
-        device = "/dev/sda2";
-        subvolume = "rootfs";
-      };
-    };
-
-    sops = {
-      enable = true;
-      keyFile = "/persist/private-keys/age/deertopia";
-    };
-
-    deertopia = {
-      # authelia.enable = true;
-      # bepasty.enable = true;
-      # jellyfin.enable = true;
-      # lldap.enable = true;
-      nginx.enable = true;
-      # slskd.enable = true;
-      # webdav.enable = true;
-      # copyparty.enable = true;
-      # syncthing.enable = true;
-      # cache.enable = true;
-      # mullvad.enable = true;
-      servarr.enable = true;
-      servarr.prowlarr.enable = true;
-      servarr.jellyfin.enable = true;
-      servarr.transmission.enable = true;
-      servarr.sonarr.enable = true;
-    };
   };
 
   boot.loader = {
@@ -85,6 +42,8 @@
     enable32Bit = true;
   };
 
+  services.desktopManager.plasma6.enable = true;
+    
   environment.systemPackages = with pkgs; [
     neovim
     git

modules/home/users/crumb/emacs.nix

@@ -23,7 +23,7 @@ in {
       };
 
       emacsDataDir = "${config.xdg.dataHome}/emacs";
-      emacsCacheDir = "${emacsDataDir}/cache";
+      emacsCacheDir = "${config.xdg.cacheHome}/emacs";
       straightBaseDir = "${emacsDataDir}/straight";
 
       fontPackages = [
@@ -47,7 +47,11 @@ in {
           capt-of
           pgf # Includes TikZ.
           tikz-cd # Commutative diagrams w/ TikZ.
+          quiver # Commutative diagrams w/ TikZ & q.uiver.app.
           metafont
+          preview # For new-gen org-latex-preview.
+          mylatexformat # For new-gen org-latex-preview.
+          collection-fontsrecommended # Essential fonts.
           ;
       };
 

modules/home/users/crumb/emacs/modules/lang/syd-lang-clojure.el

@@ -103,9 +103,10 @@
        :side right :vslot -8 :quit t :select t)
       (,(rx bol "*cider-doc*")
        :slot 2 :vslot -8 :quit t :select t)))
-  (add-to-list 'display-buffer-alist
-               `(,(regexp-quote cider-scratch-buffer-name)
-                 (,#'display-buffer-same-window)))
+  (with-eval-after-load 'cider-scratch
+    (add-to-list 'display-buffer-alist
+                 `(,(regexp-quote cider-scratch-buffer-name)
+                   (,#'display-buffer-same-window))))
   ;; DEPRECATED: Remove once syd-strategies is working.
   (syd-add-hook '(clojure-mode-hook
                   clojurescript-mode-hook

modules/home/users/crumb/emacs/modules/syd-org.el

@@ -308,6 +308,32 @@ See https://lists.gnu.org/archive/html/emacs-orgmode/2019-07/msg00081.html."
   calendar find-func format-spec org-macs org-compat org-faces org-entities
   org-list org-pcomplete org-src org-footnote org-macro ob org org-agenda
   org-capture
+  ;; We are using Tecosaur's shiny new async LaTeX preview engine.  Learn more
+  ;; here: https://abode.karthinks.com/org-latex-preview/#org9054eb6
+  :straight `(org
+              :fork (:host nil
+                     :repo "https://git.tecosaur.net/tec/org-mode.git"
+                     :branch "dev"
+                     :remote "tecosaur")
+              :files (:defaults "etc")
+              :build t
+              :pre-build
+              (with-temp-file "org-version.el"
+               (require 'lisp-mnt)
+               (let ((version
+                      (with-temp-buffer
+                        (insert-file-contents "lisp/org.el")
+                        (lm-header "version")))
+                     (git-version
+                      (string-trim
+                       (with-temp-buffer
+                         (call-process "git" nil t nil "rev-parse" "--short" "HEAD")
+                         (buffer-string)))))
+                (insert
+                 (format "(defun org-release () \"The release version of Org.\" %S)\n" version)
+                 (format "(defun org-git-version () \"The truncate git commit hash of Org mode.\" %S)\n" git-version)
+                 "(provide 'org-version)\n")))
+              :pin nil)
   :init
   ;; HACK: Face specs fed directly to `org-todo-keyword-faces' don't respect
   ;; underlying faces like the `org-todo' face does, so we define our own
@@ -418,6 +444,19 @@ See https://lists.gnu.org/archive/html/emacs-orgmode/2019-07/msg00081.html."
   (syd-org-init-theme)
   (syd-org-init-keybinds))
 
+(use-package org-latex-preview
+  :defer t
+  :straight nil
+  :custom (;; Generate previews whilst editing.
+           (org-latex-preview-live t)
+           ;; Default behaviour waits one second before generating the live
+           ;; preview.
+           (org-latex-preview-live-debounce 0.25)
+           ;; Increase size of previews.
+           (org-latex-preview-appearance-options
+            (plist-put org-latex-preview-appearance-options :zoom 1.4)))
+  :hook (org-mode . org-latex-preview-auto-mode))
+
 (use-package org-appear
   :hook (org-mode . org-appear-mode)
   :custom (org-appear-autoemphasis t))
@@ -532,9 +571,6 @@ In case of failure, fail gracefully."
    `(org-superstar-header-bullet ((t (:font ,syd-alt-fixed-pitch-font))))
    `(org-superstar-item ((t (:font ,syd-alt-fixed-pitch-font))))))
 
-(use-package org-fragtog
-  :hook (org-mode . org-fragtog-mode))
-
 (use-package org-noter
   :commands org-noter)