Congrats on launching. I spent a decade trying to build a design tool. I think I built almost 40 prototypes, to various degrees of completion. Never got to a point where I felt it was good enough to share. It's an incredibly difficult thing to do, so kudos to you for sticking with it.
Are any of your prototypes published or available to view?
Thank you, and I know exactly what you mean. I myself have rewritten the entire engine ar least three times until I was happy with the performance and the overall outcome. It’s been a long learning experience. As a developer at heart, this project scratched every itch I had from a software engineering perspective :)