Our direct experience counteracts this point. We have docs on how to add nix dependencies, and a file where they’re defined. For anything already packaged in ni

Our direct experience counteracts this point. We have docs on how to add nix dependencies, and a file where they’re defined. For anything already packaged in nix, everyone can figure out how to add a line in that file to add something to everyone’s dev environment. We have over 3 years only wound up having to write our own derivations for two or three things. We still use language-specific tools for those dependencies, though, since that is what people are familiar with. I think this strikes a fine balance: nix describes the “operating system” that we all work in, and then Cargo, npm, etc lockfiles describe each language’s dependencies.