I think bringing in python-native-libs and sbt-scalapy under the scalapy repo benefit all 3 projects, at least in terms of CI.

python-native-libs and sbt-scalapy were developed mainly for setting up scalapy so it would be good for them to be automatically tested against any change made to scalapy. Especially considering what we previously discussed about using python-native-libs to implement a runtime hook in scalapy to make these setups works in situations without sbt e.g. embedded.

On the other hand, with python-native-libs and sbt-scalapy testing scalapy under different setups e.g. virtualenvs, windows would be much easier and we can finally include it in CI here. In fact there're already virtualenv and windows tests under the python-native-libs and sbt-scalapy repos.

Let me know what you think, will be happy to do all the work on this.