Hi. Last gbirthday maintainer speaking.
The gbirthday package is more or less dead upstream, unless someone volunteers to take it over. I ported gbirthday to qt. Here is qbirthday: https://github.com/lafrech/qbirthday https://pypi.org/project/qbirthday/ There are a few changes from GBirthday but the idea and the look remain the same. I don't have time and knowledge to package it for Debian myself, but I'd be willing to help. The fact that I created a setup.py could help building the package. -- Jérôme