Using nixos for almost 2 years now, but still rookie.. Could you hint me how can I call a derivation like this via nix-shell if there is an easy way: https://github.com/NixOS/nixpkgs/blob/e9c8aeb864258e0f25f9220499510fe6e92a716f/pkgs/applications/networking/browsers/qutebrowser/default.nix I've used callPackage but it wants "mkDerivationWith" as argument, can I somehow supply whole nixpkgs as argument etc to quickly test any derivation?