hyperdb: P2P Indexable Database

Hyperdb is a JavaScript library providing a database layer designed for both peer-to-peer (P2P) and local-only data storage, leveraging the Holepunch (formerly Hypercore Protocol) ecosystem. As of version 6.6.0, it offers a schema-driven approach to defining data structures, collections, and indexes using the `Hyperschema` and `hyperdb/builder` tools. It differentiates itself by allowing developers to choose between a P2P backend (Hyperbee) for distributed, eventually consistent data, or a local, embedded database backend (RocksDB) for high-performance, single-instance storage. The project appears to be actively maintained, aligning with the broader Holepunch initiative, though a strict release cadence isn't published. Key features include declarative schema and index definitions, streaming queries, and both synchronous (`await db.get`) and asynchronous (`db.find().toArray()`) data access patterns.