Chromium: Use policies.

home/config/chromium/default.nix

@@ -63,7 +63,8 @@
         default_fixed_font_size = 14;
         default_font_size = 17;
         minimum_font_size = 16;
-        fonts = let
+        fonts =
+          let
             mono = config.style.font.monospace.name;
             sans = config.style.font.sansSerif.name;
           in
@@ -79,10 +80,10 @@
 
   localState = (pkgs.formats.json { }).generate "ChromiumLocalState" {
     browser = {
-      enabled_labs_experiments = [
-        "smooth-scrolling@2"
-      ];
+      enabled_labs_experiments = [ "smooth-scrolling@2" ];
       first_run_finished = true;
     };
   };
+
+  policy = (pkgs.formats.json { }).generate "ChromiumPolicy" { URLBlocklist = [ "darkreader.org" ]; };
 }

home/program/chromium/default.nix

@@ -2,8 +2,14 @@
 let
   package = pkgs.ungoogled-chromium;
   browserVersion = lib.versions.major package.version;
-  extensions = let
-    fetchFromStore = { id, sha256, version }:
+  extensions =
+    let
+      fetchFromStore =
+        {
+          id,
+          sha256,
+          version,
+        }:
         {
           inherit id version;
           crxPath = pkgs.fetchurl {
@@ -12,7 +18,13 @@ let
             name = "${id}.crx";
           };
         };
-    fetchFromUrl = { id, url, sha256, version }:
+      fetchFromUrl =
+        {
+          id,
+          url,
+          sha256,
+          version,
+        }:
         {
           inherit id version;
           crxPath = pkgs.fetchurl {

module/Package.nix

@@ -57,6 +57,16 @@ in
       };
 
       services.gvfs.enable = true;
+
+      # Chromium config.
+      environment.etc =
+        let
+          chromium = import <home/config/chromium> args;
+        in
+        {
+          "chromium/initial_preferences".source = lib.mkForce chromium.preferences;
+          "chromium/policies/managed/extra.json".source = lib.mkForce chromium.policy;
+        };
     })
 
     # Desktop apps.

package/default.nix

@@ -123,7 +123,7 @@
   ];
 
   creative = with pkgs; [
-    aseprite # Pixel Art draw app. WARNING: Always builds from source.
+    libresprite # Pixel Art draw app.
     blender-hip # Blender with HiP support.
     krita # Draw!
   ];