nixosModules.heliwatch: fix self

flake.nix

@@ -56,6 +56,6 @@
           nativeBuildInputs ++ buildInputs;
       };
     }) // {
-      nixosModules.heliwatch = import ./heliwatch/module.nix;
+      nixosModules.heliwatch = import ./heliwatch/module.nix { inherit self; };
     };
 }

heliwatch/module.nix

@@ -1,3 +1,4 @@
+{ self }:
 { config, lib, pkgs, ... }: {
   options.services.heliwatch = with lib; {
     enable = mkEnableOption "Enable Heliwatch MUC bot";