WunderBase is an open-source serverless GraphQL database built on top of SQLite, Firecracker/Fly machines, and Prisma. It's designed to be simple, transparent, and cost-effective, allowing developers to build scalable and efficient applications without worrying about infrastructure costs. With WunderBase, users can create and deploy databases in seconds, scale reads with read replicas, and migrate to different databases easily. The project aims to provide a unified SDK for building serverless applications, from databases to file storage, queues, pub/sub, key-value, and caching. Developers are encouraged to contribute to the project and share their ideas on what they would build with WunderBase.