I recently bought a nice Olight Sphere (OLIGHT Sphere C Luce Notturna a Sferico Light Sfera Luminosa a Bagliore Pieno 75 Lumen Luce Atmosfera Ricairabile Colorata Quotidiano Appuntamenti Lampada Campeggio Decorazione di Festa : Amazon.it: Illuminazione) and was looking for a way to integrate it in HA. It should use a BLE Sig Mesh standard and I was able to add one to a Moes Tuya Bluetooth Gateway (https://www.aliexpress.com/item/1005005637088709.html) but only via Olight proprietary app and not with SmartLife/Tuya app.
I had to put the gateway in pairing mode, then add it to Olight app (same procedure as adding a Sphere…). After this you can control the light (with the app) via the gateway through WiFi.
Now if I could extract the local keys it should be possible to control the Spheres in HA with LocalTuya/TuyaLocal etc…
Any hint?