Thanks for the hint. Long ago I also used syncthing. At that time it not fit my needs. But in this case it may is a possibility.

Any best practises for excluding files in Home for syncing like .cache ?

As far syncthing does not come with a vfs.

How long ago was your test? I hope there is some development on these concepts. I like the idea of homed.

All family member I support and provide with services use a Laptop. They are connected over wireguard. Solutions that depends on Network connections will not work.

Will test it as soon as possible. Does someon know how compartible it is with a qemu VM ? I need some GPU abilities like Vulkan there.

Someting like that on a Keyboard as Key woukd be nice. So I could dynamically switch the Key description of the current keyboard settings.