That makes total sense for eg DOS/gameboy/arcade games and the like, but is it ever that simple for PC/windows games? And there are many different issues that I have experienced when running older games myself, even if they can technically run, eg with ultra-wide and higher dpi monitors.

What I also like in this project is that they also share logs with what they worked on each game, eg for the resident evil series [0]

[0] https://www.gog.com/blog/resident-evil-1-2-3/#:~:text=RESIDE...