ZWO… why not do something like this for 3rd party focusers- in regards to me, celestron. Allow the ASCOM/indi drivers through and then on your side (ZWO/ASI app) allow only a manual focus option for third party focusers then lending all the elite auto focusing features strictly to the ZWO EAF.
This way, at least for the interm, us celestron focuser peoples can still partially use our focusers AND still use the ASIairproduct all while allowing the future temptation to “upgrade” to the EAF??
Just a thought…. Kind of a win-win