It's ~/.indi/OnStep_config.xml

My park position is 0° alt and 0° az (telescope horizontal).
For the two drivers, in the mount tab, position is bad before unpark. But the reticle is good with your driver and not in  the james driver.
It's very strange...
Same issue with Skychart (Cartes du ciel): Position is ok with your driver, not ok with james driver.

Read More...