A bit of both, has it's UPS and downs, and do not deliver all that promises, but solves quite easyly some problems.

Works well to connect devices and nodes. There is an Umbrel app for it and nostr:npub126ntw5mnermmj0znhjhgdk8lh2af72sm8qfzq48umdlnhaj9kuns3le9ll is supposed to be working on their own more private version using WireGuard for their node os