I am using my nextcloud server and the android app for this. The feeds and their read status are synced and it is easy to import or export your feed list.

~/code for everything I want to change/look at the source code.

~/.local/src for stuff I want to install locally from source.

I especially like the nice and simple Lua API, multiple selections and structural regex.

For anyone in need of a more featureful but still hackable editor can extend the minimal editor with existing LUA plugins for extra functionality (LSP, spellchecking, plugin management, …).