FYI progress update:
The concepts that will make up the first release have now been successfully tested.
Now refactoring starts, you can think of it as code cleanup, it's arduous and tedious and totally worth it
After this comes a final decision on file format and the 1st release will soon follow.
Take note that there will be NO GUI in the 1st release, manual editing of a text file will be necessary, although I will attempt to provide reasonable starting points for "the usual suspects".
Timeframe: sometime next year (hopefully early next year).