@ret @gsuberland yep, one thing she learned is that openhab's builtin zigbee support is... not great, and zigbee2mqtt is 100% the way to go
the other one is that USB isn't super reliable, and she ended up using an Ethernet Zigbee bridge. it has a really cursed chinese serial to ethernet controller in it, but despite how sketchy it looked it has a basically 100% uptime