Filecoin (go-filecoin)

go-filecoin is a community-driven implementation of Filecoin in Go. The go-filecoin implementation is nearly feature-complete (as of June 2020) with go-filecoin nodes interoperating with Lotus nodes.

Protocol Labs is offering DevGrants to support the development of go-filecoin.

You can find the go-filecoin codebase here and its extensive documentation website here.