I was able to successfully set up a 1-panel, multi-site environment like showed in this thread. I am only missing one feature, and that is working preview links.
I was able to modify the base URL of the preview links depending on the site they’re for. But unfortunately, the preview does not work (I always get the live version of each page).
I assume this is because the Kirby backend session is bound to the (sub-)domain of the panel and does not have any effect on the different domains of the websites. Am I correct? Any ideas how to work around this?