I wrote an app for Ham radio folks that lists nearby repeaters like Repeaterbook, but better, open source.
Can you please package Repeater-START, it is available as .deb here
https://sourceforge.net/projects/repeater-start/files/

I wrote up an 8 part howto on building this Librem app too:
https://howtotrainyourrobot.com/building-an-amateur-radio-app-for-linux-part-1