{ inputs, ... }: {
  imports = [
    inputs.devshell.flakeModule
    inputs.treefmt-nix.flakeModule
    inputs.pre-commit-hooks.flakeModule
  ];

  perSystem = { config, pkgs, ... }: {
    devshells.default = {
      name = "world";
      devshell.startup.pre-commit.text = config.pre-commit.installationScript;
      packages = with pkgs; [
        (config.treefmt.build.wrapper)
        python3
        just
        pandoc
        nixos-rebuild
      ];
      env = [{
        name = "DEVSHELL_NO_MOTD";
        value = "1";
      }];
    };

    treefmt = {

      projectRootFile = ".git/config";

      flakeFormatter = true;
      flakeCheck = true;

      # list of supported programs
      # https://github.com/numtide/treefmt-nix
      programs = {
        nixpkgs-fmt.enable = true;
        shfmt.enable = true;
        taplo.enable = true;
        ruff.enable = true;
        yamlfmt.enable = true;
      };
    };

    pre-commit = {
      check.enable = true;
      settings = {
        hooks = {
          deadnix.enable = true;
          treefmt.enable = true;
        };
      };
    };
  };
}