Has anyone been able to install the official eWelink add-on in home assistant on IHOST?
Why do you need that. Install HACS on HA. You’ll find sonoff addon in hacs. Everuthing works OK. To add zigbee devices connected to ihost you need to install homebridge addon (then ewelink addon in homebridge). After that install homekit control addon in HA. Done.If yo are not connecting zigbee devices to ihost (what I suggest) you can just finish after step 1. In my opinion best solution is Tasmota ZHA flashed zigbee bridge connected (wifi) to HA. Better coverage, not complicated.