Do you need the source code of your bank before you can have expectations of how it works?  Much more important than the source is the protocol, and CryptoNote is widely documented.  The DAG structure and P2P interface will soon be public.  Then you can implement your own daemon that doesn't use the DERO canonical source code, and run it on the network.  It is decentralized, and every coin is verifiable back to the genesis block.  You don't need the source, or its history, to understand or participate in the network, if you have protocol documentation and an understanding of the crypto.