I have been a longtime user of the Petsafe door (you're right, it's Zigbee) on SmartThings. Like a lot of people here, I migrating away from ST and have come to Hubitat. Much better. Hubitat, however, does not appear to have a native device driver for the PetSafe door, nor has anyone in the community done the integration work.
This morning, I pulled up the ST device driver written by ST user @Sticks, followed the directions here regarding porting ST drivers to HE. And, at least for the moment (10 minutes in), it works.
I just sent @Sticks a message on the ST board asking him for permission to use his intellectual property. I get a little nervous about just using other people's stuff without asking. Leftover from getting beat up in the playground when I was five I guess.
Anyone else have any luck on this?