let
  pkgs = import <nixpkgs> {};
  vpsadminos_spec = builtins.fromJSON (builtins.readFile ./pinned/vpsadminos.json);
  nixpkgsVpsFree_spec = builtins.fromJSON (builtins.readFile ./pinned/nixpkgs-vpsfreecz.json);
in
{
  vpsadminosGit = builtins.trace vpsadminos_spec pkgs.fetchgit {
    inherit (vpsadminos_spec) url rev sha256;
    leaveDotGit = true;
  };

  nixpkgsVpsFreeGit = pkgs.fetchgit {
    inherit (nixpkgsVpsFree_spec) url rev sha256;
    leaveDotGit = true;
  };
}