sbt monorepo example

This example has 3 subprojects:

• common
• foo
• bar

Each of them has their own dependencies + shared dependencies.

GitHub actions trigger tests for only that subproject. (changes to common triggers all tests)

No need to store common-jar as it's included in each subproject.

All projects can share package versions / scala versions / compiler options etc.

Some links

• https://www.scala-sbt.org/1.x/docs/Multi-Project.html
• https://stackoverflow.com/a/46160521
• https://alexklibisz.com/2021/01/31/sane-scala-sbt-dependencies.html (polyrepos)