Just curious because there hasn't been any updates to this or the Trello board in a while.

If not, is there a possibility you could open source this so others could help out with development?

Hi! Sorry for the late reply. I haven’t really touched this since. I haven’t worked on any of my fan-made projects after I’ve uploaded holo sudoku because of work. But since I’ll be out of work starting next next week, I might pick this up again. I’ll also think about your suggestion of making this open source. One thing that stops me from doing it is some paid assets I always use in my projects. Thank you for your interest!

That'd be great.  I imagine there's a number of people out there willing to contribute either with code or with art.