Local Control Tuya Smart Lock

The lock is TuyaMCU based and uses WBR3 Wifi/BLE module which is based on RTL8720CF;

TUYA IOT SDK V:2.3.1
rtl8720cf_common_lock_ty:1.1.16
pid:umca8uiv2203ua3k firmwarekey:key5943jddfsyeu3 v1:1.1.16 v2:1.3.9

Tuya-CloudCutter wont work as its not entering AP mode.
Flashed OpenBeken FW, but cant set properdpIDs

Thanks.

I’m running a Tuya-based smart lock that currently relies on Tuya’s cloud, and I want it to function entirely inside my LAN. Lock, unlock, status, battery level—everything has to stay, but without any call home.

What I need is solid API integration work. Whether you reverse-engineer the existing Tuya local protocol, pull the device keys, or wrap native commands in MQTT/HTTP, the outcome should be a clean local API I can hit from Home Assistant or a simple Python script on my Raspberry Pi.

Deliverables
• Working code (Python, Node, or equivalent) that locks/unlocks and reports state over the local network
• Step-by-step guide for extracting any required keys or tokens without cloud access
• Setup instructions that work on a fresh device
• Confirmation—via packet capture or logs—that no outbound traffic is generated

I can supply packet captures, serial console logs, and I’m comfortable flashing test builds if that helps. Ideally I’d like this wrapped up within two weeks, but let me know your realistic timeline and any prerequisites. Looking forward to keeping this lock private and fully under my control.