Adding firefox nightly

modules/desktop/system.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, mozilla, ... }:
 
 {
   # Boot
@@ -45,6 +45,20 @@
     # Doesn't work ?
     # languagePacks = [ "fr" "en-US" ];
   };
+  nixpkgs.overlays = [ mozilla.overlays.firefox ];
+    # let
+    #   # Change this to a rev sha to pin
+    #   moz-rev = "master";
+    #   moz-url = builtins.fetchTarball {
+    #     url = "https://github.com/mozilla/nixpkgs-mozilla/archive/${moz-rev}.tar.gz";
+    #     sha256 = "sha256:0fcfg835ly29m7m4xzhxb7lvw2ayxcv7cn7pzw4hkj2j1vzx7b2b";
+    #   };
+    #   nightlyOverlay = (import "${moz-url}/firefox-overlay.nix");
+    # in [
+    #   nightlyOverlay
+    # ];
+
+  programs.firefox.package = pkgs.latest.firefox-nightly-bin;
 
   xdg.portal.enable = true;