Sunny is a composable DeFi yield aggregator powered by Solana, one of the fastest growing blockchain ecosystems. The Sunny Protocol is designed with composability as a core feature, enabling other applications and protocols to easily build on top of it. Many DeFi projects provide token-based yield farming incentives as a mechanism for bootstrapping liquidity. With so many new Solana DeFi projects launching, it has become increasingly difficult for users to manage their yield farming positions across different interfaces. A yield aggregator simplifies this process by offering a streamlined solution for discovering and entering farms. The aggregator can then offer additional strategies, such as automatically compounding the farmed tokens. The Solana ecosystem has seen rapid growth over the past year as more high quality projects and investors enter the scene. From March 2021, the TVL of Solana DeFi rose from $150M to $1.3B, a faster percentage increase than even Ethereum or BSC. Most of this activity can be attributed to yield farming on AMMs like Raydium and Saber. One of Solana’s key advantages is that transactions all happen on a single shard. Multi-sharded scalability solutions like Ethereum’s Polygon, Arbitrum, or ETH 2.0 could silo DeFi applications into separate shards. Solana’s single-sharded design feature allows for better composability between any application in the ecosystem. Ethereum-based yield aggregators like Yearn Finance have seen massive success by providing a composable building block for other DeFi projects. We see a clear opportunity to replicate this success by building the first composable yield aggregator on Solana.