FlatFileDB is a straightforward, file-based database solution for PHP that stores records in JSON lines, supports indexing, offers schema validation, and provides transaction-safe logging. Designed for small to medium projects, it removes the need for external database servers and ensures easy setup, portability, and maintenance. This first release introduces all the core features—CRUD operations, index management, compaction, and backups—allowing you to quickly integrate a robust yet lightweight data layer into your applications. Enjoy exploring FlatFileDB, and feel free to share your feedback!