Finally came across a migration guide (subversion to git), one that actually worked:
https://git-scm.com/book/en/
Main issue with the migration was the sub-division of the repository into base/addons/incubator/etc. However, I decided to skip really old code and just start at a revision after the sub-division.
You can find the repositories now here:
- https://github.com/Waikato/
adams-base - https://github.com/Waikato/
adams-addons - https://github.com/Waikato/
adams-incubator - https://github.com/Waikato/
adams-libraries - https://github.com/Waikato/
adams-spectral-base - https://github.com/Waikato/
adams-applications
Contributing should be much easier now, so go on, fork the repos! 🙂