Gonzo wrote: I run one on my C6 OTA which rides on an HEQ5 mount. The Celestron focuser is supported by indi and has worked flawlessly.

One note is that I had to do the initial calibration using the windows app because triggering the calibration routine via the indi driver would result in a crash. The calibration is stored in the focuser, so you only have to do it once. The indi driver will read the calibration values stored in the focuser after that.