Considering that you even starred my GitHub repository and that even the frame looks pretty exactly like the one I built (but with nicer quality), this really seems to be heavily inspired by my build from early 2019.
Now don't get me wrong, I'm happy that people like to build on my stuff. You could even re-use the code (MIT license). Making this thing ready to sell is probably a lot of work. I never had any intention to do that.
But still, don't sell this as your idea. And remember, MIT license allows you to re-use the code, but it requires to re-state the license text, including the name of the original author.
Considering that you even starred my GitHub repository and that even the frame looks pretty exactly like the one I built (but with nicer quality), this really seems to be heavily inspired by my build from early 2019.
Now don't get me wrong, I'm happy that people like to build on my stuff. You could even re-use the code (MIT license). Making this thing ready to sell is probably a lot of work. I never had any intention to do that.
But still, don't sell this as your idea. And remember, MIT license allows you to re-use the code, but it requires to re-state the license text, including the name of the original author.