diff --git a/flake.lock b/flake.lock
index 270899c..1de93e7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -642,6 +642,22 @@
       }
     },
     "nixpkgs_12": {
+      "locked": {
+        "lastModified": 1750386251,
+        "narHash": "sha256-1ovgdmuDYVo5OUC5NzdF+V4zx2uT8RtsgZahxidBTyw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "076e8c6678d8c54204abcb4b1b14c366835a58bb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_13": {
       "locked": {
         "lastModified": 1743568003,
         "narHash": "sha256-ZID5T65E8ruHqWRcdvZLsczWDOAWIE7om+vQOREwiX0=",
@@ -848,6 +864,7 @@
         "stylix": "stylix",
         "syd-fcitx5-tables": "syd-fcitx5-tables",
         "sydnix-cli": "sydnix-cli",
+        "sydpkgs": "sydpkgs",
         "tf2-nix": "tf2-nix",
         "vpn-confinement": "vpn-confinement"
       }
@@ -938,6 +955,24 @@
         "type": "path"
       }
     },
+    "sydpkgs": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_12"
+      },
+      "locked": {
+        "lastModified": 1758168482,
+        "narHash": "sha256-4vyBtLPIXbFJWg2saKM+J54/7VOBEn/2wzKavj6ac6I=",
+        "owner": "msyds",
+        "repo": "sydpkgs",
+        "rev": "5802980437ba595967c52cb70e53178718456bf9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "msyds",
+        "repo": "sydpkgs",
+        "type": "github"
+      }
+    },
     "systems": {
       "locked": {
         "lastModified": 1681028828,
@@ -1001,7 +1036,7 @@
     "tf2-nix": {
       "inputs": {
         "flake-utils": "flake-utils_4",
-        "nixpkgs": "nixpkgs_12"
+        "nixpkgs": "nixpkgs_13"
       },
       "locked": {
         "lastModified": 1744886451,
diff --git a/flake.nix b/flake.nix
index 3767954..b6c072e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -29,6 +29,7 @@
     };
     tf2-nix.url = "gitlab:msyds/tf2-nix";
     syd-fcitx5-tables.url = "gitlab:msyds/syd-fcitx5-tables";
+    sydpkgs.url = "github:msyds/sydpkgs";
   };
 
   outputs = { self, nixpkgs, ... }@inputs:
diff --git a/hosts/deertopia/configuration.nix b/hosts/deertopia/configuration.nix
index 66243bf..ec92198 100644
--- a/hosts/deertopia/configuration.nix
+++ b/hosts/deertopia/configuration.nix
@@ -46,6 +46,7 @@
 
     deertopia = {
       authelia.enable = true;
+      quiver.enable = true;
       www.enable = true;
       bepasty.enable = true;
       jellyfin.enable = false;
diff --git a/modules/nixos/deertopia/quiver.nix b/modules/nixos/deertopia/quiver.nix
new file mode 100644
index 0000000..31a926d
--- /dev/null
+++ b/modules/nixos/deertopia/quiver.nix
@@ -0,0 +1,23 @@
+{ config, lib, pkgs, sydpkgs, system, ... }:
+
+let cfg = config.sydnix.deertopia.quiver;
+in {
+  options.sydnix.deertopia.quiver = {
+    enable = lib.mkEnableOption "Quiver, a commutative diagram editor";
+  };
+
+  config = lib.mkIf cfg.enable {
+    sydnix.deertopia.nginx.vhosts."q".vhost =
+      let
+        package = sydpkgs.packages.${system}.quiver;
+      in {
+        forceSSL = true;
+        enableACME = true;
+        locations."/" = {
+          extraConfig = ''
+            root ${package}/opt/quiver;
+          '';
+        };
+      };
+  };
+}