{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    utils.url = "github:numtide/flake-utils";
  };
  outputs = { self, nixpkgs, utils }: utils.lib.eachDefaultSystem (system:
    let
      pkgs = nixpkgs.legacyPackages.${system};
      pname = "stream-examples";
      benchmark = (jdk : pkgs.maven.buildMavenPackage {
        mvnJdk = jdk;
        pname = pname;
        version = "0.1.0";
        src = ./.;
        nativeBuildInputs = [ pkgs.makeWrapper ];
        mvnHash = "sha256-G7PQd0Ul61m+C9S7OvAB6NkMxRM8AMYg5+1G0RQeXP8=";

        installPhase = ''
        mkdir -p $out/bin $out/share/${pname}
        install -Dm644 target/stream-examples.jar $out/share/${pname}/${pname}.jar
        echo 'didier rocks!'
        mkdir -p $out/bin $out/share/${pname}
        makeWrapper ${jdk}/bin/java $out/bin/${pname} \
             --add-flags "-jar $out/share/${pname}/${pname}.jar"
        '';
      });
    in
    {
      packages = {
        benchmark-openjdk = benchmark pkgs.jdk22;
        benchmark-graal = benchmark pkgs.graalvm-ce;
      };
      devShell = pkgs.mkShell {
        buildInputs = with pkgs; [
            jdk22
            maven
        ];
      };
    }
  );
}