config.nix

with (import <nixpkgs> {});
{
  allowUnfree = true;
  packageOverrides = pkgs: with pkgs; {
    userPackages = buildEnv {
        inherit ((import <nixpkgs/nixos> {}).config.system.path)
        pathsToLink ignoreCollisions postBuild;
        extraOutputsToInstall = [ "man" ];
        name = "user-packages";
        paths = [ 
          firefox
          chromium
          slack
          spectacle
          virtualbox
          nixUnstable
          rustc
          cargo
        ];
    };
  };
}