

To download it use the links. Also please check the extensive documentation at http://springboard-core.readthedocs.io/en/latest/
The repository is available at: https://github.com/Spring-SpringBoard/SpringBoard-Core/
Here are some introduction videos:
https://www.youtube.com/watch?v=28g-sMu08OU
https://www.youtube.com/watch?v=DBigX19uiYA
https://www.youtube.com/watch?v=TmhvmxvFUuM
Feedback welcome.
Enjoy!