Is there a way to specify the newest driver version to install (specifically 545.29.02)? Or how long approximately does this usually script get updated?
I tried installing the .run file from nvidia today but only ended up with an unbootable system (thank you btrfs snapshots).
nvidia-inst does not support installing from the AUR. But as suggested above, you can do so manually (at your own risk). Then you need to replace most of your nvidia related packages with the same beta version from the AUR.