Lotus is an implementation of the Filecoin Distributed Storage Network. For more details about Filecoin, check out the Filecoin Spec.
All work is tracked via issues. An attempt at keeping an up-to-date view on remaining work is in the lotus testnet github project board.
For instructions on how to build lotus from source, please visit https://docs.lotu.sh or read the source here.
Dual-licensed under MIT + Apache 2.0