Add Helium AppImage and replace Chromium webapps

- Add Helium browser as an AppImage and include it in system packages.
- Rename fluxer package into the appimages module and update imports.
- Add `SUPER+H` keybinding to launch Helium and `SUPER+CONTROL+T` for
  tsukimi.
- Change web‑app desktop entries to use Helium instead of Chromium.
- Disable ungoogled‑chromium and ChatGPT modules on the laptop host.
- Fix a minor typo in a comment within hardware.nix.

hosts/Garand-Desktop/hardware.nix

@@ -58,7 +58,7 @@
     }
   ];
 
-  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # Enables DHCP on each ethernet and wireless inter.. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's
   # still possible to use this option, but it's recommended to use it in conjunction
   # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.

hosts/Garand-Laptop/home-modules.nix

@@ -12,7 +12,7 @@ _: {
   Web browsers
   */
   librewolf.enable = true; # Librewolf: a privacy-focused Firefox fork
-  ungoogled-chromium.enable = true; # Ungoogled Chromium: a privacy-focused Chromium fork
+  ungoogled-chromium.enable = false; # Ungoogled Chromium: a privacy-focused Chromium fork
 
   /*
   System utilities
@@ -58,7 +58,7 @@ _: {
       messenger.enable = true; # Messenger: Facebook Messenger
       mastodon.enable = true; # Mastodon: a decentralized social network
       garandcloud.enable = true; # GarandCloud: my Nextcloud instance
-      chatgpt.enable = true; # ChatGPT: a large language model
+      chatgpt.enable = false; # ChatGPT: a large language model
       claude.enable = true; # Claude: a large language model
       glance.enable = true; # Glance: my home server dashboard
       jellyfinClient.enable = true; # Jellyfin: My Jellyfin

modules/core/packages/appimages/default.nix

@@ -0,0 +1,6 @@
+{pkgs, ...}: let
+  fluxer = pkgs.callPackage ./fluxer.nix {};
+  helium = pkgs.callPackage ./helium.nix {};
+in {
+  environment.systemPackages = [fluxer helium];
+}

modules/core/packages/appimages/helium.nix

@@ -0,0 +1,37 @@
+{
+  lib,
+  appimageTools,
+  fetchurl,
+}: let
+  pname = "helium";
+  version = "0.11.7.1";
+
+  src = fetchurl {
+    url = "https://github.com/imputnet/helium-linux/releases/download/0.11.7.1/helium-0.11.7.1-x86_64.AppImage";
+    sha256 = "sha256-qzc135IP5F2btxtOMUGMz+0azJhYL9KI0lcPG2KjcxU=";
+  };
+  appimageContents = appimageTools.extract {inherit pname version src;};
+in
+  appimageTools.wrapType2 {
+    inherit pname version src;
+
+    extraInstallCommands = ''
+      # mv $out/bin/${pname}-${version} $out/bin/${pname}
+      install -m 444 -D ${appimageContents}/${pname}.desktop $out/share/applications/${pname}.desktop
+      install -m 444 -D ${appimageContents}/usr/share/icons/hicolor/256x256/apps/${pname}.png \
+        $out/share/icons/hicolor/256x256/apps/${pname}.png
+      # substituteInPlace $out/share/applications/${pname}.desktop \
+      #   --replace-fail 'Exec=AppRun' 'Exec=${pname}'
+    '';
+
+    meta = with lib; {
+      description = "Helium browser";
+      homepage = "https://github.com/imputnet/helium";
+      license = licenses.agpl3Plus;
+      platforms = ["x86_64-linux"];
+      sourceProvenance = with lib.sourceTypes; [binaryNativeCode];
+      maintainers = with lib.maintainers; [garand_plg];
+    };
+  }
+# https://github.com/imputnet/helium-linux/releases/download/0.11.7.1/helium-0.11.7.1-x86_64.AppImage
+

modules/core/packages/default.nix

@@ -1,7 +1,7 @@
 _: {
   nixpkgs.config.allowUnfree = true;
   imports = [
-    ./fluxer
+    ./appimages
     ./essentials.nix
     ./packages.nix
     ./programs.nix

modules/core/packages/fluxer/default.nix

@@ -1,6 +0,0 @@
-{pkgs, ...}: let
-  fluxer =
-    pkgs.callPackage ./fluxer-package.nix {};
-in {
-  environment.systemPackages = [fluxer];
-}

modules/home/hyprland/binds.nix

@@ -13,6 +13,7 @@
     "SUPER, E, exec, noctalia-shell ipc call launcher emoji #\"Emoji picker\""
     "SUPER, Escape, exec, noctalia-shell ipc call lockScreen lock #\"Lock the screen\""
     "SUPER, G, exec, affinity-v3 #\"Graphics editor\""
+    "SUPER, H, exec, helium #\"Helium web browser\""
     "SUPER, I, exec, iotas #\"Note-taking app\""
     "SUPER, J, exec, Jan #\"Local AI chat interface\""
     "SUPER, K, exec, gnome-calculator #\"Scientific calculator\""
@@ -32,10 +33,10 @@
 
   shiftBinds = [
     "SUPER SHIFT, C, exec, dex ${desktopEntriesPath}/claude.desktop #\"Claude AI chat\""
-    "SUPER SHIFT, D, exec, jellyfin-desktop #\"Jellyfin media client\""
     "SUPER SHIFT, E, exec, evolution #\"Personal information management application\""
     "SUPER SHIFT, Escape, exec, noctalia-shell ipc call sessionMenu toggle #\"Open Session Menu\""
     "SUPER SHIFT, G, exec, dex ${desktopEntriesPath}/chatgpt.desktop #\"ChatGPT AI chat\""
+    "SUPER SHIFT, J, exec, ${desktopEntriesPath}/jellyfinClient.desktop #\"Jellyfin PWA\""
     "SUPER SHIFT, K, exec, noctalia-shell ipc call plugin:keybind-cheatsheet toggle #\"Toggle keybind cheatsheet\""
     "SUPER SHIFT, M, exec, plexamp #\"Music player for Plex\""
     "SUPER SHIFT, N, exec, nextcloud #\"Nextcloud desktop sync client\""
@@ -65,6 +66,7 @@
     "SUPER CONTROL, G, exec, gimp #\"GNU Image Manipulation Program\""
     "SUPER CONTROL, M, exec, mattermost-desktop #\"Mattermost team chat client\""
     "SUPER CONTROL, S, exec, signal-desktop #\"Signal encrypted messaging\""
+    "SUPER CONTROL, T, exec, tsukimi #\"A simple Emby/Jellyfin Client\""
     "SUPER CONTROL, P, exec, hyprpicker -a #\"Pick color from screen\""
   ];
 

modules/home/xdg/desktop-entries.nix

@@ -12,7 +12,7 @@
   makeEntry = app: {
     name = app.displayName;
     genericName = app.genericName or app.displayName;
-    exec = "chromium --profile-directory=Default --app=${app.url}";
+    exec = "helium --profile-directory=Default --app=${app.url}";
     icon = "${fetchIcon app.iconUrl app.iconSha}";
     terminal = false;
     type = "Application";