Hi Ludo, On Fri, 8 Oct 2021 at 09:41, Ludovic Courtès wrote: > Yes, that’s what I thought: could be used in > ‘fold-available-packages’ & co., so that would kind of unify that. Therefore, do we agree that the cache /lib/guix/package.cache should be extended? Because the v3 adding an extra cache [1] shows improvements of "guix search" and v4 moving the extra fields to the regular cache [2] shows the same improvements for searching and in addition improves this cache generation. The issue with v4 is the field 'license'. And v6 is an attempt to by-pass that (keep the regular cache and only read on-the-fly the required information); but because of this, I guess: (module-ref (resolve-interface module) symbol) it is slower! 1: 2: 3: All the bests, simon PS: For cross-reference, discussion originally happened on .