I would have said the biggest thing hurting plan 9 adoption is that there is no C++ compiler. And this sort of slots into the next biggest thing, it's not posix

I would have said the biggest thing hurting plan 9 adoption is that there is no C++ compiler. And this sort of slots into the next biggest thing, it's not posix, Yes posix is several sorts of terrible and a large part of the plan 9 ethos is to break from it's unix past and do things right. But posix keeps everybody on the same page so things tend to be easy to port. It is very hard to port software to plan 9. There is that posix layer APE but it does not appear to help for any moderately complicated program. I think this is because there is no C++ compiler. Every couple of years I resolve to try plan9 again, because I love the idea of it. and every time I sort of lose interest, I am mot a good enough programmer to make the pieces I want from scratch, it is too hard to port existing software, every thing is too different from any unix system. So I struggle for a day or two then go back to my obsd. As shallow as it is I think having a good web browser would solve 90% of my issues. and we loop back to the no C++ compiler again.