> The fact that Git, Python 3, SSH and nginx worked fairly ok implied they probably did some testing too. Or it's a simple side effect of them being portable s

> The fact that Git, Python 3, SSH and nginx worked fairly ok implied they probably did some testing too. Or it's a simple side effect of them being portable software. Since the same code has to work on very different ISAs like 32-bit x86 and 32-bit ARM, any architecture-specific code has to be cleanly separated, with a portable fallback. As long as the compiler can still target the "486" architecture, they'll work. It's a different story with anything which depends on lower-level platform details, like the kernel or glibc's pthread.