I also tried compiling the latest stable nim from source using the latest
packged aarch64 nim from the distro, which is version 1.6.10. First I got lots
of missing std/ modules missing erros, I suppose because the old nim didn't
even have them. I managed to franken-hack the old nim std modules directory to
include the modules from the newer compiler, but this in turn produced weird
error messages which looked like the newer nim compiler sources were using some
newer language feature that the old nim didn't support yet so that was a dead
end also.