I have never heard of tangle before - are many people using it? What are peoples opinions of it?

Pro-tip if you're a Tangled newbie: migrating knots and spindle on your Tangled PDS before building Bobbin?

Remember that Bobbin "is only a glorified edge index, in the graph theory sense. Additionally it has a record cache, re-filled on demand. All other data that Bobbin serves comes live from PDSes & knots."

You want to first nixery bao proxy spindle with AppRole credentials, then xrpc your punchcard via ATProto. The docs explain all of this clearly, so be sure to read them thoroughly.

https://docs.tangled.org/bobbin#building-bobbin

FWIW, I really like what Tangled is doing and I agree that we need a federation of forges. Which is why, I am planning to use ATproto too for public repositories in the code forge I am building, https://juju.bi