Hello, As the upstream maintainer of GCstar and preparing a 1.8.0 version, I support updating the GCstar packages for Debian.
Using the Debian packaging rules from https://gitlab.com/GCstar/GCstar/-/tree/main/gcstar/packages/debian , I used Gitlab CI to generate a .deb package https://gitlab.com/GCstar/GCstar/-/packages/10814845 that I successfully tested on Devuan, Ubuntu and Debian (with a warning on a proprietary license). I can modify the rules to comply to the requirements necessary to revive GCstar on Debian. Regards Kérénoc