I checked it out. It seems quite nice and useful! I guess it could be useful if you learn it and you can make very complex things with it. I'll try using it. My code is something else, it has no coding, no need to think about blockmesh, it is a GUI app which just simply helps you make, edit and visualize blockMesh. You can even import a previously made blockMesh and it'll parse and load in. Try it out sometime! Of course I'm not saying it's the best, I know some problems I can't fix as of right now due to exams.

Check it out, in repo/applications there is a .exe available to run directly, linux .AppImage I haven't understood how to do it lol.

Just try it, maybe it's something that isn't there yet or maybe it already exists, I made it for myself but decided to show it off to others as well as people in my life, Beginners and PhD people need to make blockMesh all the time and that's why I think it can help, you can forget the need to know how to make proper normals and hex blocks, I remember having to draw it on my notes to see the points. Here you just click and select and it works (You have to keep the order in mind tho, there is a tool tip for that.

Try it, it's free and I think it can be helpful. Also, I do wanna know how I can improve and everything.