The first room is accesible after leaving, i fiddled a bit with the inputs and buttons to make it easier to visualize, after the opening the door, there is a puzle that teaches how to use the left most machine
the game had some images that has no right to be as big as they were, and the Video Ram usage went from 6GiB to 2GiB, maybe it runs now as it requires less Video ram 👍