this post was submitted on 08 Jun 2023
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Asklemmy
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How does your rust env setup look like? I've recently setup a full flake based dev-env, that uses fenix. It works great, but I'm interested in hearing a professional opinion
When I worked for Prisma, you can check our rust setup from the public flake:
https://github.com/prisma/prisma-engines/blob/main/flake.nix
CD to the project and nix-direnv loads the flake. Get to work.
Now when I'm working in Grafbase, our flake is a bit different:
https://github.com/grafbase/grafbase/blob/main/flake.nix
Instead of the Rust overlay, we use rustup and rust-toolchain.toml. This makes it easier to enforce the same Rust version for nix and non-nix users.
Both ways work really well. The deal is to define the rust env per project instead of defining it globally. Use direnv to make it working seamlessly.