Cats Effect is a high-performance, asynchronous, composable framework for building real-world applications in a purely functional style within the Typelevel ecosystem.

munit-cats-effect

Functional, effectful, concurrent streams for Scala

Support for IO operations in the fs2 ecosystem

Core http4s library for servers and clients

cats-effect-testkit

log4cats-slf4j

Scala Language-Integrated Connection Kit

cats-effect-laws

ZIO integrates with Typelevel libraries by providing an instance of Concurrent, Temporal and Async for Task as required, for instance, by fs2, doobie and http4s.

scalacheck-effect-munit