It’s very nice to end the year in this way: Team DuckTales, the guys that port enigma2 to the sh4-based Kathrein UFS-910, released their sources of enigma2.
You can find them here:
The code is quite clean with #if defined(__sh__), so changes with respect to the vanilla version are easy to find.
The release.notes explain the status of the project and what you need for giving it a try.
Enjoy and thanks to Team DuckTales!