Fixes the following error when trying to run the final script:
Traceback (most recent call last):
File "/nix/store/z1klbgg6p9v3vszjyvsjix9s4blsl7mv-gkraken-1.2.0/bin/.gkraken-wrapped", line 45, in <module>
gi.require_version('Gtk', '3.0')
File "/nix/store/k46f21qglnnl2grkx6gq6j6jlawfkgpw-python3.10-pygobject-3.42.2/lib/python3.10/site-packages/gi/__init__.py", line 126, in require_version
raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Gtk not available
See https://github.com/NixOS/nixpkgs/issues/56943
