Significant progress

modules/users/modules/systemwide/waylock.nix

@@ -0,0 +1,10 @@
+{ lib, config, pkgs, ... }:
+
+with lib;
+let
+  enabled = any (user: user.modules.waylock.enable) (attrValues config.home-manager.users);
+in {
+  config = mkIf enabled {
+    security.pam.services.waylock = {};
+  };
+}