Video is nearly 3 years old now, but I think it’s worth watching. Her presentation starts at around 2:30.
Basically, she explains how Redbean, a tiny (~450kb) and very fast C http server, works and how the same executable can be used to deploy it on most operating systems (she starts explaining that around 14:30)
Justine is also the mind behind Sector LISP, Lambda Calculus in 383 bytes, considerable optimizations to LLamaAI, plus several other things.
Yea, I forget where, but she’s openly lamented the rise of ARM for this reason. Not because it’s a small blemish on redbean and cosmopolitan libc (what redbean uses to be “universal”) … but, IIRC, x86 had gained such ubiquity that simply sticking with it for the sake of interoperability and backwards compatibility was/is probably worth it. However accurate that is, or viable in today’s tech world, I certainly resonate with the sentiment. And given what her and cosmopolitan libc seem to have accomplished (I’ve never used these things), it certainly seems like one of nice things we could have if we just did things in a nicer way.