Howto Setup Zigbee2mqtt on OpenWrt

update : since domoticz does not currently support python 3.10 and only supports 3.4 to 3.8. so you are still currently limited to openwrt19.07.10. but you can make domoticz2022.1 for openwrt see ( there are precompiled package for cortexA7 cpu ) and for node packages see including zigbee2mqtt node package