Pekko has experimental support for Scala 3.
You can use CrossVersion.for3Use2_13 to use the regular 2.13 Pekko artifacts in a Scala 3 project. This has been shown to be successful for Streams, HTTP and gRPC-heavy applications.
We are publishing experimental Scala 3 artifacts that can be used ‘directly’ (without
CrossVersion) with Scala 3.
We do not promise binary compatibility for these artifacts yet.