At time i was testing simplex there was no linux package, maybe i can try again. I go over all documentation, it is progressive project, but sometimes less is better than more. I am against many session technicals, but session i can run on all my devices with same account and restore it on any device because i remember my seed, as far as i can remember simplex does not use seed. I can imagine seed and hd key generation + custom salt password for it, it would be secure, with ability to restore and also custom privacy device by device woth same account, but i do not thing that someone would be able to understand what i am talking about.