I think its a SuperNET project (a collaboration between a few different coins IIRC, BitcoinDark being one of the better known ones): a decentralized wallet & exchange client they're building. Apparently they have their own node implementation for bitcoin-based coins and included UNO, pretty sweet! Worth looking into that a little deeper, we've been discussing a need for decentralized exchanges for a while...

Steemit is just the social crypto platform used for that blogpost.