I just checked my old ActionTiles account, and it appears that the Hubitat support may still be present, albeit still in Beta form. If one goes into their AT Licenses section, there is an option to add a new hub. Hubitat still is shown as an option.
I just linked AT to one of my Hubitat Hubs, and was able to expose a selection of devices. Then I created a new AT Panel and added the HE devices to it as tiles. Seems to still work fine.
