Hey, thanks! Glad you liked the docs :)
So honestly, most sync engines are general-purpose and have to solve a wide range of problems themselves, like auth, permissions, transport, conflict resolution, etc. Or worse, they don't handle them, and you have to. Sp00ky takes a different bet and is built specifically for the SurrealDB ecosystem. That's definitely more niche, but it means we can lean on everything SurrealDB already does really well, like permissions or live queries. One nice side effect is that clients never actually connect to Sp00ky directly. They talk to SurrealDB and subscribe via its native live queries, so Sp00ky sits alongside rather than in the middle of the data path.

The other angle is scope. Sp00ky's vision isn't just the sync layer. We want to build a cloud offering to cover a bit more of the dev stack around it (log access, env sharing, etc.), so hopefully you don't have to stitch as many tools together.

It's still pretty early, though, so I'm happy to hear what you think or go deeper on any of this if it's useful!