flyize

This would be so awesome.

I've no real idea exactly what this means, but apparently 'we' can. https://community.home-assistant.io/t/zha-user-code-management-on-zigbee-door-locks/225594/19

I'd love to help test as well, but have no idea how to install this branch, which I suppose means I wouldn't be much help.

Oh! Of course. Duh

FWIW, my Kwikset 913 doesn't show up as a possible lock when I try to add the integration.

Where would I find that? This is what the device looks like in ZHA. 

Yep. It shows lock. 

So, as you alluded to, that was user error. I was able to get everything added but adding/deleting PINs isn't working. I followed the instructions to enable debug logging, but...

You can always book a flight, try to check in, and then cancel for a refund. They are required by law to give you a full refund within 24 hours...

While not nearly as fun, you can always send a text to +19493292899 to get automatic checkins. Seems to work well, they have a free and VIP version. Dude seems...