Fluence is an open application platform that provides a P2P application development stack for building decentralized applications (DApps) and hosting their backends. It aims to enable interoperability between APIs, services, and nodes. Fluence also offers "off-chain legos" like consensus, backends, peer-to-peer networking, and more to complement "on-chain legos" from DeFi. Aquamarine is a programming language based on pi-calculus for coordinating network services, organizing execution flows, and connecting to external data sources and blockchains. Fluence is offering bounties for using Aquamarine with existing or new services.