26.9.1 added /lib/systemd/system/perplexity-local-runtime-setup.service
to the deb, and wholesale extraction made the package own /lib -- a
symlink owned by filesystem -- so pacman refused every install and
upgrade. The unit could never work here anyway: its setup script
apt-installs Docker and the NVIDIA Container Toolkit and exits on any
distro but Ubuntu, so the Arch equivalents ride optdepends instead.
package() now allowlists what leaves the deb: opt/, usr/, and that one
known unit path (deleted). Anything else stops the build rather than
shipping the next filesystem conflict.
Verified in a clean container: the published -1 reproduces the /lib
conflict; -2 installs fresh and upgrades from 26.8.4 cleanly.