There's a driver and support page here: [RELEASE] OwnTracks Presence
Since you have a Hubitat Hub, I don't think you need a separate server or docker -- just have the OWN app report directly to the Hubitat driver.
It's definitely a bare-bones type of app as I remember but there's no reason it can't work. But, if you're expecting a Life360 type experience, it's not really going to impress IMO.
