Cronos is a task scheduler for Solana. In this hackathon, we created an on-chain task queue where users can schedule instructions to be signed and validated according to a predetermined schedule. These tasks are currently being cranked by an open bot network. Looking forward, we're now building an AccountsDB plugin to begin onboarding validators and RPC nodes to the network. Our goal is to build a system where on-chain programs can schedule background tasks directly with the Solana validator network so dapps no longer have to rely on spammy, costly, centralized crank-turning nodes. To achieve this vision, we're actively working with many members of the Solana community such as Switchboard, Marginfi, Friktion, Blockdaemon, and number of independent validator operators.