[rpnx]

I made something a bit similar to this when trying to make a new shorthand. It was made by translating to stenotype and then following rules to convert the stenotype runes to a kanji like form. Eventually I decided it wasn’t faster than existing shorthand, mainly because of the mental overhead of converting to and from stenotype.

I never coded it (I only used it a few times for handwriting before I decided it was bad) but it might be a cool project.