It would be the final config of the home-manager instance of the module system, not the config attribute from Nixpkgs. You can do sort of η-expansion:
home-manager.users.myUser.imports = [
({ config, ... }: import ./home.nix {
inherit config pkgs;
})
]
But I would just recommend the solution suggested above, as it will have home-manager to inject the correct config.
If you want to learn how the module system works, I would recommend just reading its source code. See Import list in `configuration.nix` vs `import` function - #5 by jtojnar for where to start.
By the way, you do not need to include the config argument if you do not use it, the ellipsis will just swallow it.