I decided to clean a little bit my configuration folders and I’m not totally sure which files are safe to delete. I can see the contents of some files can be found in core.config_entries.
The files I’m wondering about are:
phue.conf
plex.conf
sabnzbd.conf
harmony_harmony_hub.conf
.uuid
html5_push_registrations.conf
What about known_devices.yaml are there still device trackers that still using this file?
If you are unsure, don’t delete them. Just append .bak On the end of the existing file extension. Do some testing for a while (days) if it turns out you need them you only have to revert the file name. If you don’t need them then delete.