Thanks so much @patdavid for fixing this channel 
so I give it a try here 
Hi @photoprism_app nice to hear about your incredible softare which I never heard of before.
As I studied your quite impressive feature list on your web site, I was wondering if the photos are auto-tagged by AI-based analysis of the photos itself, or if tagging is “just” based on the meta-data included in the JPEG or sidecar file. Unfortunately I didn’t find more information about this on your web site, but perhaps I just overread it…
So any links to the documentation or comments are appreciated 
