apache / spark

Unified analytics engine for large-scale data processing with APIs in Scala, Java, Python, and R.

lichess-org / lila

Open source server powering lichess.org, a free, ad-free online chess platform with realtime games, analysis, and tournaments.

apache / datafusion-comet

Apache DataFusion Comet is a plugin that accelerates Apache Spark queries by running operators and expressions natively on Arrow columnar data.

apache / gluten

Middleware plugin that offloads Spark SQL physical plan execution to native engines like Velox and ClickHouse.

gitbucket / gitbucket

Self-hosted Git web platform written in Scala, offering repository hosting, issues, pull requests, and wiki.