flake.nix

{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
  inputs.flake-utils.url = "github:numtide/flake-utils";

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      {
        packages = let
          callPackage = file: args: import file (args // { pkgs = nixpkgs.legacyPackages.${system}; system = system; });
        in {
          judge = callPackage ./judge.nix {};
          judge-minimal = callPackage ./judge.nix { minimal = true; };
          cyaron = callPackage ./cyaron.nix {};
          xeger = callPackage ./xeger.nix {};
          mongodb = callPackage ./mongodb.nix {};
          gcc = callPackage ./gccWithCache.nix {};
          mongodb8 = callPackage ./mongodb.nix { version = "8.2.3"; inherit system; };
          mongodb7 = callPackage ./mongodb.nix { version = "7.0.28"; inherit system; };
          mongodb6 = callPackage ./mongodb.nix { version = "6.0.27"; inherit system; };
          mongodb5 = callPackage ./mongodb.nix { version = "5.0.32"; inherit system; };
          mongodb4 = callPackage ./mongodb.nix { version = "4.4.30"; inherit system; };
          mongodb8-cn = callPackage ./mongodb.nix { version = "8.2.3"; inherit system; };
          mongodb7-cn = callPackage ./mongodb.nix { version = "7.0.28"; inherit system; };
          mongodb6-cn = callPackage ./mongodb.nix { version = "6.0.27"; inherit system; };
          mongodb5-cn = callPackage ./mongodb.nix { version = "5.0.32"; inherit system; };
          mongodb4-cn = callPackage ./mongodb.nix { version = "4.4.30"; inherit system; };
        };
        mongodb = import ./mongodb.nix;
      }
    );
}