error on nixos-mailserver: function 'anonymous lambda' called without required argument 'lib'

[KiaraGrouwstra]

Describe the bug

Trying to inspect the options of nixos-mailserver, I seem to be run into an error about missing argument lib.

Steps to reproduce

1. git clone https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git
2. nix run github:bluskript/nix-inspect -- --path .
3. browse to Root -> nixosModule
4. find error: function 'anonymous lambda' called without required argument 'lib'

Expected behaviour

No error

Considered alternatives

• reading source code

Additional context

this may relate to their direct use of import (with arguments left implicit) when loading their default.nix from flake.nix: mailserverModule = import ./.;