For some time I thought about integrating an vacuum robot into our smarthome. But as the rest of the smarthome the robot should work offline. So I came across Valetudo Firmware an the list of supported robots: Supported Robots | Valetudo

Next step was, to find a supported robot for a reasonable price. I came across a Viomi SE at an Amazo Warehouse deal in “Good” confition for 150€ so i decided to give it a try.