There's a Nix integration on nodejs/node that's tested on every commit, we could take advantage of it instead of maintaining a separate dev env. By its nature of being declarative and claiming 100% reproducibility, both Nix and devcontainer are tools that can be used to provide a "blessed" dev env, so let's try to make them converge to a single one.

That could open the door to using the build artifacts from this repo to speed up the linux builds on nodejs/node.

The idea comes from the discussion with @joyeecheung in nodejs/node#60472 (comment).