It's cool that this exists. I might even try to port a program to it, for my own amusement. But I don't see the big draw.

VMS had its pros and cons as compared to Unix/Linux. VMS' help system is really nice. However, VMS filenames are baroquely complex (yes, automatic versioning can be nice, but the rest of it was insane). Even at its height, VMS lost to Unix, and Unix plus Linux are now completely dominant in the areas VMS once filled and has had decades to fill in missing capabilities. I don't see what the big draw of VMS would be over Unix/Linux, at least enough to justify it. The world doesn't need another proprietary operating system, especially one incompatible with what people have now been doing for decades.