I have bought an Asiair pro after I have used a rapsberry Pi4 with Stellarmate. I have just replaced by an Asiair Plus. It is good products.
I have a request, with my Raspberry, I have used a simple GPS USB. The Indi drivers exist. The GPS position could be read & send to the mount. It is very simple. Due to the fact, that a lot of issue of mis-calibrating and goto errors are due to an issue in the GPS position & the time setup, it will be a good improvement to the ZWO solutions.
Links to Indi driver:
https://www.indilib.org/aux/gpusb.html
Product example
https://www.amazon.fr/VK-162-Navigation-Interface-R%C3%A9cepteur-DC3-3-5V/dp/B08M5LZZL2/ref=sr_1_7?__mk_fr_FR=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=R4RG4HOSWH5H&keywords=GPS+usb&qid=1646119890&sprefix=gps+us%2Caps%2C176&sr=8-7
I expect you could make this improvement in the next releases. If other customer are agree with me, could you add a comment in the post for ZWO request.
Thank you