{
  description = "The source of the wkd at vhack.eu";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

    treefmt-nix = {
      url = "github:numtide/treefmt-nix";
      inputs = {
        nixpkgs.follows = "nixpkgs";
      };
    };

    # inputs for following
    systems = {
      url = "github:nix-systems/x86_64-linux"; # only evaluate for this system
    };
    flake-utils = {
      url = "github:numtide/flake-utils";
      inputs = {
        systems.follows = "systems";
      };
    };
  };

  outputs = {
    self,
    nixpkgs,
    flake-utils,
    treefmt-nix,
    ...
  }:
    flake-utils.lib.eachDefaultSystem (system: let
      pkgs = nixpkgs.legacyPackages.${system};

      treefmtEval = import ./treefmt.nix {inherit treefmt-nix pkgs;};
    in {
      packages = {
        # TODO(@bpeetz): Support the 'simple' wkd configuration <2024-05-25>
        default = ./src;
      };

      checks = {
        formatting = treefmtEval.config.build.check self;
      };

      formatter = treefmtEval.config.build.wrapper;

      devShells.default = pkgs.mkShell {
        packages = with pkgs; [
          cocogitto

          licensure
        ];
      };
    });
}
# vim: ts=2