When you start talking about offline then you’re going to run into consistency issues and conflicts. How will a system automatically determine which edit to a file is correct if they were both edited offline?

I’m fairly certain Ceph is also going to be online only. You won’t be accessing your CephFS filesystems when you take your laptop offline since they’re part of the object store.

Something like Syncthing (as @Max_P@lemmy.max-p.me suggested) or some other ‘Dropbox-like’ self-hosted solution might be the way to go for what you’re doing. Even then you’ll probably only want to replicate a subset of your home directory - for example I’d skip temp and cache files that a lot of programs create.

If you want to play with Ceph just for the sake of doing so then don’t let me stop you though :)