| Yes, there is! We (https://tvl.fyi) have been building Nix monorepo tooling for a while. You can see the current state of our repo at cs.tvl.fyi (+ reviews at cl.tvl.fyi and dynamic CI on tvl.fyi/builds). We use josh[0] to let people clone "just in time" repos with the tooling needed for our setup[1]. We've also started a consultancy (tvl.su) that helps companies move onto this setup, and have customers going for it already. The reasons we've not been making a lot of noise about this are that we have other large projects(like Tvix[2]) taking up time, and also the integration with customers moving to this setup lets us more confidently figure out what parts we need to smoothen for "non-TVL" use-cases. As for using Nix in a Bazel-like way, the common experience with Nix is that language-specific build systems are wrapped. This being possible enables projects written in any language to be wrapped in Nix, and integrated in a Nix-based monorepo (something which makes it distinctly more powerful than other solutions). However, there's nothing in principle preventing Nix from dropping down a layer to the project level itself, and we've implemented (and use) this for Go[3] and Common Lisp[4]. [0]: https://github.com/josh-project/josh [1]: https://cs.tvl.fyi/depot/-/blob/views/kit/README.md [2]: https://tvl.fyi/blog/rewriting-nix [3]: https://code.tvl.fyi/about/nix/buildGo [4]: https://code.tvl.fyi/about/nix/buildLisp |