> Where the hope mainly comes from is small chip developers like SiFive, who make many of their drivers and such open-source. But that's only if you buy from vendors like them ...

So, you're saying it is possible (or will be down the track...) as long as things are bought from SiFive or a similar OSS-friendly place.

That's still a large improvement over the current situation, even if other vendors take different, locked down approach.