fix(kratos): replace gdm with greetd/tuigreet login manager

2026-05-25 09:19:08 +02:00
parent 9f1e7fd568
commit 32677cfb40
3 changed files with 42 additions and 2 deletions
@@ -0,0 +1,39 @@
+# greetd login manager for m3-kratos (replaces broken GDM on nixos-unstable).
+# Uses tuigreet as the greeter, launching Hyprland after authentication.
+{
+  pkgs,
+  config,
+  ...
+}: let
+  inherit (config.programs.hyprland) package asHyprland;
+  tuigreet = "${pkgs.tuigreet}/bin/tuigreet";
+  startHyprland = "${asHyprland.package}/bin/start-hyprland";
+in {
+  services.greetd = {
+    enable = true;
+
+    settings = {
+      default_session = {
+        user = "greeter";
+        command = builtins.concatStringsSep " " [
+          tuigreet
+          "--time"
+          "--remember"
+          "--remember-session"
+          "--remember-user-session"
+          "--user-menu"
+          "--user-menu-min-uid 1000"
+          "--asterisks"
+          "--power-shutdown '${config.systemd.package}/bin/systemctl poweroff'"
+          "--power-reboot '${config.systemd.package}/bin/systemctl reboot'"
+          "--cmd ${startHyprland}"
+        ];
+      };
+    };
+  };
+
+  # Required for --remember and --remember-user-session to persist session choices.
+  systemd.tmpfiles.rules = [
+    "d /var/cache/tuigreet 0755 greeter greeter - -"
+  ];
+}