The earlier survey grepped for the exact package name and concluded the
binding in hyprland.conf was dead. It is not: system76 has it from AUR as
networkmanager-dmenu-git, and the work laptop carries the upstream script
in its own bin. The $mainMod+W binding already works on both.
Adding the repo package to system76.pacman would have made pkg-restore
install it alongside the AUR one — both ship /usr/bin/networkmanager_dmenu,
so pacman would have refused with a file conflict.