Upgraded snowfall lib

modules/nixos/desktop/addons/swaylock/default.nix

@@ -0,0 +1,29 @@
+{
+  options,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.aa.desktop.addons.swaylock;
+  user_cfg = config.home-manager.users.${config.aa.user.name};
+in {
+  options.aa.desktop.addons.swaylock = with types; {
+    enable = mkEnableOption "swaylock";
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [swaylock];
+
+    aa.home.extraOptions = {
+      programs.swaylock.settings = {
+        image = "${user_cfg.xdg.dataHome}/${config.aa.desktop.sway.wallpaperPath}";
+      };
+    };
+
+    # Workaround for https://github.com/NixOS/nixpkgs/issues/158025
+    # This comment specifically: https://github.com/NixOS/nixpkgs/issues/158025#issuecomment-1344766809
+    security.pam.services.swaylock = {};
+  };
+}