{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
  };
  outputs = {
    nixpkgs,
    flake-utils,
    ...
  }:
    flake-utils.lib.eachDefaultSystem (
      system: let
        pkgs = import nixpkgs {
          inherit system;
          config = {
            supportCuda = true;
          };
        };
      in {
        devShells.default = pkgs.mkShell {
          packages = with pkgs; [
            jdk
            gradle
            kotlin-language-server
            ktfmt
            jdt-language-server
            checkstyle

            graph-easy
            graphviz
          ];
        };
      }
    );
}