

Yup, also especially for industrial applications, requirements and needs absolutely can change, and that means having to work around the equipment. I have seen firsthand the experience of trying to get new features into ancient applications. (Made worse by the fact that we took on support for it because the original company which had created the program had gone under).
I don’t think that’s a good fit there, Redox OS is 10 years old and has yet to go stable. In the same timespan in the 90s, Linux managed to carve out a notable portion of server market share. I am not going to Tanenbaum myself and claim it’s never going to go anywhere but as is, Redox is more like the one who didn’t show up because they are still in their moms basement.