Rust is pretty well regarded technically here, but RISC-V is mostly a "wouldn't it be nice" rather than something most commenters seem to be super knowledgeable about.

Many people still think that RISC-V implies an open source implementation, for example.

Or, if you do, you'd better be absolutely right, or people will tear your argument to shreds.

You can do worse than that. You can take the Linux's name in vain.