how to compile lagom service in scala3

[wangzi1204]

I want to compile my lagom project in scala3.
Follow this documentation, when Prepare the dependencies, I change my build.sbt:

lazy val `service-api` = (project in file("service-api"))
  .settings(
    libraryDependencies ++= Seq(
      lagomScaladslApi
    ).map(_.cross(CrossVersion.for3Use2_13))
  )

but lagom api depends other projects can't found.

error info:

[error] (service-api / update) sbt.librarymanagement.ResolveException: Error downloading com.lightbend.lagom:lagom-scaladsl-server_3:1.6.4
[error]   Not found

Lagom Version (1.2.x / 1.3.x / etc)

1.6.4

API (Scala / Java / Neither / Both)

Scala3

Operating System (Ubuntu 15.10 / MacOS 10.10 / Windows 10)

MacOS 11.5

JDK (Oracle 1.8.0_112, OpenJDK 1.8.x, Azul Zing)

JDK8

[mosaic-matt-bush]

I think this is likely impossible (at least for now). Lagom makes extensive use of scala macros, which completely changed between 2.13 and 3.0, so the for3Use2_13 trick probably won't work.