Required by ZMK cmake boilerplate additions, namely list(PREPEND) which was introduced in cmake 3.15.x
For common and build only. Changes back to interactive at the end of dev for end-user (developers) convenience. Based on discussions with KemoNine.
Foundation version of GitHub workflow and Dockerfile. Based on: https://docs.zephyrproject.org/2.3.0/getting_started/index.html https://docs.zephyrproject.org/2.3.0/getting_started/installation_linux.html#install-requirements-and-dependencies + SDK 0.11.4