r9

AFAIK there is no Rust compiler for Plan 9 or 9front. The project is using a dialect of C and its own C compiler(s). I doubt adding Rust to the mix will help. For a research OS, C is a nice clean language and the Plan 9 dialect has a some niceties not found in standard C. If you really want Rust, check this https://github.com/r9os/r9 it is Plan 9 reimplemented in Rust (no idea about the project quality): R9 is a reimplementation of the plan9 kernel in Rust. It is not only inspired by but in many ways derived from the original Plan 9 source code.

Oh man, these are great. Check out https://github.com/ansuz/RIIR/issues/ for more. Gosh... and people on HN tell us that they have yet to meet a Rust fanatic. Just look around the GitHub Issues I linked. --- BTW I stumbled upon https://github.com/r9os/r9 as well. Reading the source code, it is mainly unsafe blocks and assembly. :| Who would have thought?

No, that's R9: https://github.com/r9os/r9 (edit: proper r9 project link) Harvey is Plan 9 built with a GCC/Clang tool chain instead of the Plan 9 tools. AFAIK both projects are abandoned (edit: R9 might still be alive) and most devs have moved on to 9front which is a modern fork of Plan 9.

https://harvey-os.org/ (Retired) The team now works on this: https://github.com/r9os/r9

It is indeed going to be about Plan 9. :-) The talk was a couple of weeks ago now and is already online: https://fosdem.org/2024/schedule/event/fosdem-2024-3095-one-... I linked to it in the first paragraph. You can read the script if you want. Redox, OTOH, no: it does not even enter into it. Although I do not address it, if pressed, I might concede that if there is a Rust involvement, it's R9, the successor to Harvey OS. https://github.com/r9os/r9