1.4 Release Changelog - You can now attach the end of a laser to a LivingEntity, using `attach %livingentity% to [the] end of %lasers%` - 1.18+ support.
I've also tried to make sure that when updates happen that do break my shit, it doesn't stop you from being able to use the addon at all, and you should be able to still use the non-NMS reliant features.