{
  inputs = {
    nixpkgs = { };
    modularFlake = {
      url = "git+https://git.dzuchun.ing/dzu/modular-flake.git?ref=main";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    naersk = {
      url = "github:nix-community/naersk";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };
  outputs =
    {
      nixpkgs,
      modularFlake,
      ...
    }@flakeInputs:
    let
      flakeModulesDir = ./envs;
      flakeModules = map (name: ./envs/${name}) (
        builtins.filter (nixpkgs.lib.hasSuffix ".nix") (
          builtins.attrNames (builtins.readDir flakeModulesDir)
        )
      );
    in
    modularFlake.lib.mkFlake {
      inherit
        flakeInputs
        ;
      systems = [ "x86_64-linux" ];
      modules = flakeModules ++ [ ./lib ];
      outputs = with modularFlake.lib.defaultOutputs; [
        devShells
        checks
        packages
        apps
        ./lib/output.nix
      ];
    };
}