It's cumbersome to create a single app. You had to design user interfaces, write code in multiple languages and frameworks, and understand how all of that code works together. Low-code/No-code ...
It does make for a funny joke, though I can't recommend really playing the game with this texture pack ...
However, you can queue the update for the Mounts of Mayhem game drop manually as well. The launcher lets players initiate updates on the existing version, upgrading ...