I would be highly interested, if this worked - because nevertheless I am living at 48 deg north, I don't have a view to north from my balcony So without using a guiding scope it is really really problematic. I think, this is a scenario, which a lot of people might have. Or think, if you are in the mountains or have trees to the north.
Ok I tried the legacy tool, and works well. But it asks me to adjust the mount towards a “target” but I never saw a target. Did you remove that feature? The calculations were perfect and I used that to gain alignment. I am guiding right next w with a really tight tracking.
iOptron CEM120 EC2 and CEM25P
Celestron C11 EdgeHD and William Optics Star71
ASI 1600MM Pro, ASI 462MC
Moonlight Litecrawler (C11) and Motorfocus (WOStar71)
LodeStar X2 and ZWO OAG
Nextdome, AAG Cloudwatcher