mini-lsm is an educational project that teaches database internals through building a log-structured merge tree storage engine in Rust.
The project addresses the challenge of understanding how modern key-value databases work internally by providing a hands-on implementation of an LSM tree, a data structure used in production systems like RocksDB and LevelDB. Rather than explaining theory in isolation, the approach guides learners through building a functional storage engine piece by piece, allowing them to see how components like memtables, SSTables, and compaction strategies fit together in practice.
This project suits developers who want to deepen their understanding of database architecture and storage systems rather than those seeking a production-ready key-value store. It works best as a learning resource for people comfortable with Rust who are willing to engage with the implementation details of a real storage engine. The structured tutorial format makes it accessible to those new to LSM trees while still covering the complexity of a genuine database design.
The project shows consistent engagement with learners through documentation and examples that support the educational mission. Development activity demonstrates sustained attention to maintaining the learning experience and keeping the codebase aligned with its instructional goals.
