New comment by the-maldridge on void-packages repository

https://github.com/void-linux/void-packages/issues/33781#issuecomment-954850066

Comment:
@Chocimier the use case is to POST package files and logs back after builds complete.  In this case installing curl after xbps-src is done would result in it being installed for every build, which while a relatively trivial load on the internal mirror would be slow and inefficient over using a pre-cached filesystem image that already includes curl.

This could also be done as a package that is not depended on by anything and gets added to the ethereal masterdir during a build step to keep it out of local chroots and environments where its presence is not required.