Precision: my initial suggestion was motivated by the desire to recover disk
space from the store by removing _some_ dead items, without running `guix gc`
which could remove too many items which would need to be rebuilt later on.

guix-store-* lets you sort items by size and select which items you'd like to
remove.

It can be seen as a disk analyzer for the Guix store, analogous to programs
like Baobab or ncdu.

Cheers!

-- 
Pierre Neidhardt
https://ambrevar.xyz/