I don't see the source for anytype on their github org, but I do see forks of various go libraries: ipfs, libp2p (protocol layer abstracted from ipfs), badger (a kv store), mongo, goldmark (markdown parser), amplitude (product analytics... "privacy-first"?!), etc. This doesn't mean that these libraries will definitely be used but it seems to paint a clearer picture of what it will be than the marketing team's meaningless self-flagellation that is the overdone homepage.