{ description = "basic test framework for idris 2";

  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
    idris2-pkgs.url = "github:claymager/idris2-pkgs";
    nixpkgs.follows = "idris2-pkgs/nixpkgs";
  };

  outputs = { self, nixpkgs, idris2-pkgs, flake-utils }:
    let systems = with flake-utils.lib.system;
          [ x86_64-darwin x86_64-linux i686-linux ];
    in
    flake-utils.lib.eachSystem systems (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ idris2-pkgs.overlay ];
        };
        inherit (pkgs.idris2-pkgs._builders) idrisPackage devEnv;

        packages = rec {
          tap = idrisPackage ./. { };
          tap-example = idrisPackage ./example { extraPkgs = packages; };
        };
        devShells =
          let mkDevShell = _: pkg:
                pkgs.mkShell { buildInputs = [ (devEnv pkg) ]; };
              shells = packages // (with packages; { example = tap-example; });
          in builtins.mapAttrs mkDevShell shells;
      in {
        inherit packages devShells;
        defaultPackage = packages.tap;
        devShell = devShells.tap;
      }
    );
}