Using this opportunity to plug https://github.com/ihhub/fheroes2

It’s the open source reimplementation of HoMM2. It’s fully playable, although the reimplemented AI plays much, much smarter than the original, which can be an upside or a downside for you.

There is also an android version, it works great on a tablet!

I’ve seen some different methods on how to achieve curves, do you have a tutorial for the one you use?

Do you have a mod to build the curves or just lots of blueprints?

https://www.akamai.com/blog/security-research/critical-linux-backdoor-xz-utils-discovered-what-to-know