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NOTE: pacman v7 is currently in [libre-testing]; but it will be promoted to libre soon
from arch:
With the release of [version 7.0.0] pacman has added support for
downloading packages as a separate user with dropped privileges.
For users with local repos however this might imply that the download
user does not have access to the files in question, which can be fixed
by assigning the files and folder to the alpm group and ensuring the
executable bit (+x) is set on the folders in question.
$ chown :alpm -R /path/to/local/repo
Remember to [merge the .pacnew] files to apply the new default.
Pacman also introduced [a change] to improve checksum stability for
git repos that utilize .gitattributes files. This might require a
one-time checksum change for PKGBUILDs that use git sources.
