buck2 VS buck2-prelude

https://buck2.build/ https://github.com/facebook/buck2

Rust support is also rather good ;) https://github.com/facebookincubator/reindeer

Buck 2 by Facebook

NOTE: I won’t mention SBT and Leiningen here because, with all due respect, they are niche build tools. I also won’t discuss Kobalt for the same reason (besides, it’s no longer actively maintained). Additionally, I won’t touch upon Bazel and Buck in this context, mainly because I’m not very familiar with them. If you have insights or comments about these tools, please feel free to share them in the comments 👇

There's a new build system which works on similar ideas to buck: https://buck2.build/

I don't think all these pieces are open source yet, but https://github.com/facebook/buck2/blob/main/prelude/rust/rust-analyzer/resolve_deps.bxl is a snippet that is used to drive Rust Analyzer

We have a small example project that demonstrates what that would look like with buck2: https://github.com/facebook/buck2/tree/main/examples/bootstrap

There are a few references to NixOS on the code/issues.[0] I wonder what Meta's use case is for NixOS.

[0] https://github.com/facebook/buck2/search?q=nixos&type=issues

The prelude rules are available as a git repo https://github.com/facebook/buck2-prelude. For now we recommend making that a git submodule, and updating that submodule should fetch new rules. We'd also be very happy for the typescript/ruby rules to be added to that Prelude - we consider it an open source project where we welcome contributions. However, we are starting to get our first open source users, so are keen to see if this works in practice, and happy to adjust if something else works better. -Neil M.