firejail

I would recommend not touching Firejail unless you are 100% sure you know what you are doing, as it can (and probably will) worsen security.

Every time someone mentions XMPP I want to link this Soatok’s blogpost.

Against XMPP+OMEMO

This whole document is a bunch of outdated information, misinformation and manipulation.

The XLibre project continues this legacy with active community development.

This particular part shows the real reason why it was written. Go promote your Nazi-maintained nonsense somewhere else.