To add to your point, following Woodruff's "Weird architectures weren't supported to begin with", Robert O'Callahan pointed out[1] that for one definition of th

To add to your point, following Woodruff's "Weird architectures weren't supported to begin with", Robert O'Callahan pointed out[1] that for one definition of the open-source platform (looking at the requirements of Linux distributions), a new architecture would need to support at least: LLVM and GCC targets, a port of the Linux kernel, a V8 backend, and acceleration for various codecs. And while at this point a platform needs to have support from both compilers, I can see the GCC/glibc ecosystem being made redundant; LLVM is more adaptable and has found its way into so many specialized compiler stacks. [1]: https://lwn.net/Articles/847830/ https://lwn.net/Articles/847830/