{
  self,
  extra_lib,
  module_args,
  extra_modules,
  special_args,
  nixpkgs-stable,
  nixpkgs-unstable,
  deploy-rs,
  system,
}: let
  hosts = extra_lib.mkByName {
    useShards = false;
    baseDirectory = ./by-name;
    fileName = "configuration.nix";
  };

  mkNixosConfiguration = name: path: let
    host_file = builtins.fromTOML (builtins.readFile (path + "/../host.toml"));
    nixpkgs =
      if host_file.nixpkgs == "stable"
      then nixpkgs-stable
      else nixpkgs-unstable;
  in
    nixpkgs.lib.nixosSystem {
      specialArgs = special_args;
      modules =
        extra_modules
        ++ [
          {
            _module.args = module_args;
          }
          path

          ../modules
          # ../modules/common
        ];
    };
  mkDeployHost = name: path: let
    host_file = builtins.fromTOML (builtins.readFile path + "/host.toml");
  in {
    inherit (host_file) hostname;
    profiles.system = {
      user = "root";
      path = deploy-rs.lib."${system}".activate.nixos self.nixosConfigurations."${name}";
    };
  };

  nixosConfigurations = builtins.mapAttrs mkNixosConfiguration hosts;
  nodes = builtins.mapAttrs mkDeployHost hosts;
in {
  inherit nixosConfigurations nodes;
}