I tried again and still got an error.
–2023-05-23 21:05:46-- https://aur.archlinux.org/cgit/aur.git/snapshot/optimus-manager.tar.gz
Loaded CA certificate ‘/etc/ssl/certs/ca-certificates.crt’
Resolving aur.archlinux.org (aur.archlinux.org)… 2a01:4f9:c010:50::1, 95.216.144.15
Connecting to aur.archlinux.org (aur.archlinux.org)|2a01:4f9:c010:50::1|:443… connected.
HTTP request sent, awaiting response… 200 OK
Length: unspecified [application/x-gzip]
Saving to: ‘optimus-manager.tar.gz’
optimus-manager.tar.gz [ <=> ] 1.61K --.-KB/s in 0s
2023-05-23 21:05:46 (24.9 MB/s) - ‘optimus-manager.tar.gz’ saved [1647]
chown: invalid user: ‘username’
==> ERROR: You do not have write permission for the directory $BUILDDIR (/optimus-manager/optimus-manager).
Aborting…