Whenever the output of a derivation mentions a nix path in /nix/store, Nix creates a dependency between the derivations. Copying the derivation closure copies over all dependencies.
Is there any way to stop this behavior for certain dependencies. My use case is I want nix to build a set of packages, and then create a ‘manifest’ file that mentions a set of disjoint derivations. I want to be able to process the manifest independently of the derivation on a fleet of other machines to determine which derivations I want to copy over to save on bandwidth.
I think one easy idea is to simple mangle the /nix/store names somehow, but if there’s a more elegant way that preserves human readability, I’d be interested.