{ nixpkgs
, idris
, flake-utils
, system
, stdenv
, runCommand
, lib
}:
let
  withTests = tests: drv:
    let testDrvs = lib.mapAttrs
      (name: testScript:
        runCommand "${drv.name}-test-${name}"
          {} ''
            ${testScript}
            touch "$out"
          '') tests;
     in testDrvs;
  createTemplate = flake: inputs: type: let
    self = import flake;
    template = self.outputs ({ inherit self nixpkgs idris flake-utils; } // inputs);
    templateBuild = template.packages.${system}.${type};
    in templateBuild;

  templateBuildDefault = createTemplate ./templates/pkg/flake.nix {} "build";
  templateBuildDefaultLibrary = createTemplate ./templates/pkg/flake.nix {} "installLibrary";
  templateBuildWithDeps = createTemplate ./templates/pkgWithDeps/flake.nix
    { pkg = templateBuildDefaultLibrary; } "build";

  testsTemplate = {
    checkFoo = ''
      ${templateBuildDefault}/bin/runMyPkg \
        | grep "Foo"
    '';
  };
  testsTemplateWithDeps = {
    checkBar = ''
      ${templateBuildWithDeps}/bin/runMyPkg2 \
        | grep "Bar"
    '';
  };
in
withTests testsTemplate templateBuildDefault
// withTests testsTemplateWithDeps templateBuildWithDeps
// { idris2Tests = idris.defaultPackage.${system}.overrideAttrs (a: { doCheck = true; }); }