Alternative to nippyfile

If you're looking for alternatives to Nippyfile, which is often used in programming for efficient file storage and retrieval, particularly in relation to Clojure or other environments, here are some options you might explore:

**Clojure DataScript**: Ideal for in-memory database needs, it offers similar capabilities with a more extensive querying feature.

**Datalevin**: A Clojure-based embedded database that is optimized for concurrent updates and efficient storage.

**SQLite**: A lightweight, disk-based database that doesn’t require a separate server process. It’s cross-platform and is widely used.

**LevelDB**: A fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.

**RocksDB**: A high performance key-value store based on LevelDB that is optimized for fast storage.

**Clojure's `clojure.java.io`**: A more manual approach that allows you to work with files directly, which might be sufficient for simple use cases.

**Datahike**: An immutable Datalog database that is designed for storing and querying data in Clojure.

**Persister**: A Clojure library that helps in persisting data with various backends.

**Kryo Serialization**: For binary serialization, which can help in efficiently storing objects in files.

**JSON or XML Serialization**: If data is reasonably simple, using JSON or XML files can be a straightforward and human-readable alternative.

Consider your specific needs (e.g., performance, complexity, data structure) when choosing the right alternative.