@yestalgia So I set up syncthing between a server and one client. Share folders between them. Figure out how you want the folder data replicated; for my phone pics, for example, the sync is one way from (phone) -> (syncthing server). For kids' health stuff, it's a two-way sync; because the sync might be (my laptop) <- (syncthing server) <- (my wife's laptop), or vice-versa. Then add another client to the syncthing server, following the same process. Never sync client-to-client; always via server