The rust support has gotten really good, and the maintainer for the rust rules works at OpenAI, which, incidentally, is how at least parts of OpenAI builds rust and wasm: https://github.com/openai/codex/blob/main/MODULE.bazel.
I have a pretty complex rust backend in my project. I rent a capable bare-metal build server that costs about $150/mo that powers all my personal CI. All it does is start a systemd service for gh actions self-hosted runner. I can build and release this project in around 2-4 minutes, where before even a local dev iteration cycle would be up to around 10 minutes, much less building and releasing the whole thing, which was around an hour.