flake/modules/nixos/core/home.nix

{ pkgs, lib, config, inputs, system, ... }: let 
  cfg = config.mods;

in {
  options.mods.home.file = lib.mkOption {
    description = "home-manager configuration file";
  };

  config = {
    home-manager = {
      extraSpecialArgs = { inherit system pkgs inputs; };
      users."${cfg.user.name}" = {
        imports = [
          cfg.home.file
          inputs.self.outputs.homeManagerModules.default
        ];
      };
      backupFileExtension = "bak";
    };
  };
}