add(helium): added nikkuss-pkgs and helium from that

nix/modules/helium/default.nix

@@ -0,0 +1,3 @@
+_: {
+  home = ./home.nix;
+}

nix/modules/helium/home.nix

@@ -0,0 +1,30 @@
+{
+  config,
+  lib,
+  inputs,
+  pkgs,
+  system,
+  ...
+}:
+let
+  cfg = config.modules.helium;
+  # packageNix = "${inputs.nixpkgs-gamescope}/pkgs/by-name/he/helium-browser/package.nix";
+  # helium = inputs.nikkuss-pkgs.callPackage packageNix { };
+in
+{
+  options.modules.helium = {
+    enable = lib.mkEnableOption "helium";
+  };
+  config = lib.mkIf cfg.enable {
+    home.packages = with pkgs; [
+      helium-browser
+    ];
+    # xdg.mimeApps.defaultApplications = {
+    #   "text/html" = "chromium.desktop";
+    #   "x-scheme-handler/http" = "chromium.desktop";
+    #   "x-scheme-handler/https" = "chromium.desktop";
+    #   "x-scheme-handler/about" = "chromium.desktop";
+    #   "x-scheme-handler/unknown" = "chromium.desktop";
+    # };
+  };
+}