✨➕ Use tuigreet as greeter for Hyprland and Gnome sessions

I needed to make a custom gnome desktop to start gnome with
XDG_SESSION_TYPE=wayland dbus-run-session .../gnome-session

See: https://github.com/apognu/tuigreet?tab=readme-ov-file#desktop-environments

configuration.nix

@@ -43,9 +43,10 @@
   # Enable the X11 windowing system.
   services.xserver.enable = true;
 
+  programs.hyprland.enable = true;
 
   # Enable the GNOME Desktop Environment.
-  services.xserver.displayManager.gdm.enable = true;
+  services.xserver.displayManager.gdm.enable = false;
   services.xserver.desktopManager.gnome.enable = true;
 
   services.fprintd.enable = true;

flake.nix

@@ -24,8 +24,12 @@
       };
     in {
       nixosConfigurations.nix-fw16 = lib.nixosSystem {
+        specialArgs = {
+          inherit pkgs-unstable;
+        };
         modules = [
           ./configuration.nix
+          ./greeter.nix
           nixos-hardware.nixosModules.framework-16-7040-amd
           home-manager.nixosModules.home-manager {
             home-manager.useGlobalPkgs = true;

greeter.nix

@@ -0,0 +1,32 @@
+{ config, pkgs, pkgs-unstable, lib, ... }: 
+let
+  
+  tuigreet = "${pkgs-unstable.greetd.tuigreet}/bin/tuigreet";
+  hyprland-session = "${pkgs-unstable.hyprland}/share/wayland-sessions";
+
+  # https://github.com/bytemouse/config/blob/48d9be51a9666c9b62f4b8e84322b9d892ee0aea/modules/gnome.nix#L11
+  gnome-script = pkgs.writeShellScriptBin "gnome-script" ''
+    export XDG_SESSION_TYPE=wayland 
+    ${pkgs.dbus}/bin/dbus-run-session ${pkgs.gnome.gnome-session}/bin/gnome-session
+  '';
+  gnome-desktop = pkgs.makeDesktopItem {
+    name = "gnome-desktop";
+    desktopName = "Gnome Desktop";
+    exec = "${gnome-script}/bin/gnome-script";
+    terminal = true;
+  };
+
+in {
+
+  services.greetd = {
+    enable = true;
+    settings = {
+      default_session = {
+        command = "${tuigreet} --time --remember --greeting Hoi! --remember-session --sessions ${hyprland-session}:${gnome-desktop}/share/applications";
+        user = "greeter";
+      };
+    };
+  };
+  environment.systemPackages = with pkgs-unstable; [ greetd.tuigreet ];
+
+}