The crate owns the shared library.db contract: SQLite schema and migrations, catalog models and queries, local import and metadata extraction, artwork resolution, playlists, likes, listening history, and similarity index storage. It contains no UI, playback engine, or application runtime.

During local development clients use a path dependency:

furumi-library = { path = "../frid/crates/furumi-library" }

Adjust the relative path to match the position of the client repository. After publication, clients can depend on the released crate version instead.

Library::open(default_db_path()?) opens the same platform-native Furumi library used by every client. Connections use WAL, foreign keys, and a busy timeout so independently running clients can safely share the database.