I have an older DEBOT 937 and integration has only been possible via either Alexa, or Homebridge plugins (there are two, but one works better than the other for my needs).
Alexa is limited and forces two cloud servers instead of just one.
The Homebridge plugin I use works great, but tends to fail when the hub is rebooted or there's a power failure. Never have figured out exactly why but it's repeatable, so I just have Homebridge restart daily and that's a good enough solutuion for me. I use virtual switches and HomeKit automations to trigger the cleaning of specific zones from Hubitat.
If you have one of the other models, it's proably supported by the official HA Ecovac integration. You can likley then use HADB to bring control of that integration over to Hubitat.