{ pkgs, lib, config, inputs, ... }:

{
  # https://devenv.sh/basics/
  env.GREET = "devenv";
  env.PYTHON_KEYRING_BACKEND= "keyring.backends.fail.Keyring";
  env.CUDA_HOME = pkgs.cudaPackages.cudatoolkit;
  env.CUDA_PATH = pkgs.cudaPackages.cudatoolkit;
  env.LD_LIBRARY_PATH = "/run/opengl-driver/lib:$LD_LIBRARY_PATH";
  env.CUDA_VISIBLE_DEVICES="0";
  env.PYTORCH_CUDA_ALLOC_CONF="max_split_size_mb:256";
  env.EXTRA_LDFLAGS="-L/lib -L${pkgs.linuxPackages.nvidia_x11}/lib";
	env.EXTRA_CCFLAGS="-I/usr/include";
  # env.LD_LIBRARY_PATH = ":${pkgs.cudatoolkit}/lib:${pkgs.cudatoolkit}/lib64:${pkgs.cudatoolkit}/host-linux-x64/Mesa";


  # https://devenv.sh/packages/
  packages = with pkgs;[ 
    git 
    python311Packages.python-lsp-server
    cudaPackages.cudatoolkit
    # gitRepo gnupg autoconf curl
    # procps gnumake utillinux m4 gperf unzip
    # linuxPackages.nvidia_x11
    # libGLU
    # xorg.libXi xorg.libXmu freeglut
    # xorg.libXext xorg.libX11 xorg.libXv xorg.libXrandr zlib 
    # ncurses5 stdenv.cc binutils
    # cudaPackages.libcublas
    # cudaPackages.cudnn
  ];

  # https://devenv.sh/scripts/
  scripts.hello.exec = "echo hello from $GREET";

  enterShell = ''
    hello
    git --version
  '';

  # https://devenv.sh/tests/
  enterTest = ''
    echo "Running tests"
    git --version | grep "2.42.0"
  '';

  # https://devenv.sh/services/
  # services.postgres.enable = true;

  # https://devenv.sh/languages/
  # languages.nix.enable = true;
  languages.python = {
    enable = true;
    venv.enable = true;
  };

  # https://devenv.sh/pre-commit-hooks/
  # pre-commit.hooks.shellcheck.enable = true;

  # https://devenv.sh/processes/
  # processes.ping.exec = "ping example.com";

  # See full reference at https://devenv.sh/reference/options/
}