twitter / finagle

A fault tolerant, protocol-agnostic RPC system

playframework / playframework

The Community Maintained High Velocity Web Framework For Java and Scala.

akka / akka-core

A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

delta-io / delta

An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs

http4s / http4s

A minimal, idiomatic Scala interface for HTTP