@p @SuperDicq @piggo @sun @foxido @lina RISC-V has benefited from years of popular ARM usage fixing up needlessly unportable code.

>Combinatorial complexity.
On builds yes, on codebases not really. Media players supporting ALSA+OSS+Pulse+Jack backends didn't have to care about how that interacted with the other configs for the most part. Even then, plugins can tame the number of builds to package.

>TOP500 and OpenMPI and Plan 9 and whatever else: these represent large qualitative shifts. "Wayland? Well, let me tell you: the compositor is built in! NO TEARING!" It's not impressive, it's sure as hell not worth disrupting things that already work.
Correct, it's not impressive, it's the bare minimum. Treating a multimonitor setup as one big framebuffer synchronized to one monitor is below the bare minimum.
I won't claim to never be interested in computers I don't have, but I definitely care more about the ones in front of me than supercomputers I will never interact with.