Depending on how many devices you have and/or want to support, I’d recommend going with an external coordinator. I’m using a CC2652P2 from Tube (Tube's ZB Coordinators and Routers (was Zigbee router on steroids?)). It runs on my network and allows me to place it anywhere I need it (I have mine basically in the middle of the house). Plus, it can support up to 100 child devices on its own.
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