Thank you so much for your kind comment! I'm happy to meet a fellow nonogram fan and GB dev. 😄
This project was a really helpful starting place for me to make a nonogram game in GB Studio: https://dionofspice.itch.io/gb-picross (You can see DionOfSpice in the Special Thanks section in my credits because of that. 😄) Maybe it will help give you some ideas too!
Through the course of building TaiFab, I learned a lot about GB Studio, and I'm already building a bigger and (hopefully) better puzzle architecture for my next game. 🙂