{
  description = "A simple command runner";

  outputs = {
    self,
    nixpkgs,
  }: let
    lastModifiedDate = self.lastModifiedDate or self.lastModified or "19700101";
    version = builtins.substring 0 8 lastModifiedDate;
    supportedSystems = ["x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
    nixpkgsFor = forAllSystems (system: import nixpkgs {inherit system;});
  in {
    packages = forAllSystems (system: let
      pkgs = nixpkgsFor.${system};
    in rec {
      doe = pkgs.buildGoModule {
        pname = "doe";
        inherit version;

        src = ./.;
        vendorHash = "sha256-CqkoqufGPKWgoi6Dbdl7rcz/jA84xyL7sKbPv5NTDvM=";
      };
      default = doe;
    });

    devShells = forAllSystems (system: let
      pkgs = nixpkgsFor.${system};
    in {
      default = pkgs.mkShell {
        buildInputs = with pkgs; [go gopls gotools go-tools];
      };
    });
  };
}