What a clusterfuck

modules/system/desktop/sway/greetd/default.nix

@@ -0,0 +1,37 @@
+{ pkgs, ... }:
+{
+  services = {
+    # Configure greetd for "auto" login (single user only)
+    greetd = let
+      startSway = pkgs.writeScript "startsway" ''
+        # Use NVIDIA variables if drivers are in use
+        if lspci -k | grep "Kernel driver in use: nvidia" &> /dev/null; then
+          export LIBVA_DRIVER_NAME=nvidia
+          export GBM_BACKEND=nvidia-drm
+          export __GLX_VENDOR_LIBRARY_NAME=nvidia
+          export WLR_NO_HARDWARE_CURSORS=1
+        else
+          :
+        fi
+
+        export XDG_CURRENT_DESKTOP=sway
+        export QT_QPA_PLATFORM="wayland;xcb"
+
+        sway --unsupported-gpu
+      '';
+    in {
+      enable = true;
+      restart = true;
+      settings = {
+        terminal = {
+          vt = 2;
+          switch = true;
+        };
+        default_session = {
+          command = "${startSway}";
+          user = "jimbo";
+        };
+      };
+    };
+  };
+}