{
  description = "benchmarking languages with mandelbrot image generation";

  inputs.nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";

  outputs = { self, nixpkgs }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
    in {
      devShells.${system}.default = pkgs.mkShell {
        nativeBuildInputs = with pkgs; [
          clang
          janet
        ];
      };

      packages.${system}.c = pkgs.stdenv.mkDerivation {
        name = "mandelbrot-c";
        src = ./src;
        nativeBuildInputs = [ pkgs.clang ];
        buildPhase = ''
          cc mandelbrot.c -o mandelbrot-c -lm
        '';
        installPhase = ''
          mkdir -p $out/bin/
          cp mandelbrot-c $out/bin/
        '';
      };
    };
}