JSON Filesystem Database

JSON FileSystem Database (jsondbfs) is a NoSQL document database, analogous to MongoDB, designed for Node.js environments. The latest version, 1.0.3, was released in 2017, and the project appears to be no longer actively maintained. It offers fully asynchronous data operations, leveraging the `async` library for parallel execution of accessing and filtering data. It supports two primary drivers: a high-performance 'Memory' driver, which can be configured to periodically flush data to disk for persistence, and a 'Disk' driver that stores all data directly on the filesystem and implements pessimistic transaction locking for data integrity. The package provides a lightweight, file-based database solution with Mongo-style query capabilities via `json-criteria`, but its lack of ongoing development means it may not be suitable for new projects or environments requiring up-to-date dependencies or security patches.