From 75f7acbf2ea5831376903c504fb2c1a843f4291d Mon Sep 17 00:00:00 2001
From: aaron <aaron@0x29a.ch>
Date: Wed, 7 Oct 2026 14:54:57 +0200
Subject: [PATCH] feature(greetd): add noctalia-greeter to greetd

---
 hosts/argon/configuration.nix      |  2 +-
 modules/nixos/noctalia-greeter.nix | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 modules/nixos/noctalia-greeter.nix

diff --git a/hosts/argon/configuration.nix b/hosts/argon/configuration.nix
index 3243aa3..9c6483e 100644
--- a/hosts/argon/configuration.nix
+++ b/hosts/argon/configuration.nix
@@ -11,7 +11,7 @@
     ../../modules/nixos/certificates.nix
     ../../modules/nixos/data-drives.nix
     ../../modules/nixos/gnupg.nix
-    ../../modules/nixos/greetd.nix
+    ../../modules/nixos/noctalia-greeter.nix
     ../../modules/nixos/lanzaboote.nix
     ../../modules/nixos/locales.nix
     ../../modules/nixos/networking.nix
diff --git a/modules/nixos/noctalia-greeter.nix b/modules/nixos/noctalia-greeter.nix
new file mode 100644
index 0000000..ec9c469
--- /dev/null
+++ b/modules/nixos/noctalia-greeter.nix
@@ -0,0 +1,21 @@
+{
+  # greetd display manager with the graphical noctalia greeter, replaces greetd.nix.
+  # The nixpkgs module enables greetd, accountsservice (avatars) and polkit, and
+  # launches noctalia-greeter-session. Sessions (niri) are discovered from
+  # wayland-sessions, the last one picked is remembered.
+  # See https://docs.noctalia.dev/greeter/
+  services.displayManager.noctalia-greeter = {
+    enable = true;
+
+    # lets the shell's "Sync Now" / auto-sync copy wallpaper, palette and monitor
+    # layout to the greeter without an admin prompt (appearance only)
+    passwordlessSyncUsers = [ "aaron" ];
+
+    # rendered to /var/lib/noctalia-greeter/greeter.toml, wins over synced values
+    settings = {
+      user.default = "aaron";
+      # same layout as niri, otherwise the password is typed on a us keymap
+      keyboard.layout = "ch";
+    };
+  };
+}
-- 
2.52.0