SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
Snappy compressor/decompressor for Java
Android client for local file sharing via https://pairdrop.net and self-hosted snapdrop
A port of Snappy, LZO, LZ4, and Zstandard to Java
Automated Repair Awesomeness for Apache Cassandra