A few months ago, Maxime Devos worked on a new rust-build-system to handle a few issues we were experiencing with cargo (see discussions on antioxidant in guix-devel).
A month ago, we discussed about the possibility of the integration in core guix, and the required steps. Maxime and I had a different approach. Maxime highlighted the possibility to make a smooth transition but once that would require many gradual changes and deprecation. My approach was that since we'll have to eventually migrate all packages to rust-build-system, and since we can freeze all former rust packages in an archive channel, I would be clearer to make the transition at once. Took me quite some time from there, but thanks to the huge work of Maxime and a few rust patches, I've managed to compile ripgrep properly, along with more than 350 packages which represent all transitive inputs and native-inputs. It's basically a package-level copy of Maxime's work on antioxidant, with more focus on "bootstrapping" properly (very few packages are missing a test phase), and some work to cut down the number of dependencies. It's only a step, but a good one to continue the discussion about the integration of this build-system (and the way it should be integrated). You can find it in an archive right here for a 5 days (I would rather not create a new 8 Gb repo online for 100 kb transferred, sorry). https://drop.chapril.org/download/696f37be60f243fd/#-j9Nt_xiN9eUBCsHfMDHig If we manage to continue this to reach 100% builds like the antioxidant channel, we could indeed switch in one big commit. The workspace build-system is not included yet. -- Best regards, Nicolas Graves