refactor modules/desktop

Signed-off-by: unexplrd <unexplrd@linerds.us>

hosts/dunamis/configuration.nix

@@ -1,6 +1,7 @@
 {
   config,
   inputs,
+  pkgs,
   ...
 }: {
   imports = with inputs; [
@@ -22,6 +23,11 @@
   time.timeZone = "Europe/Kyiv";
 
   desktop.niri.enable = true;
+  # TODO: make a module for autologin
+  services.greetd.settings.initial_session = {
+    user = "user";
+    command = "${pkgs.niri}/bin/niri-session";
+  };
 
   module = {
     config = {