If you want to host it locally, Stirling PDF can be run in docker, and uses a library that uses Tesseract. Has a bunch of other handy PDF operations, too. I keep it around for the two times a year I need to merge, split, or decrypt PDFs.
https://github.com/Frooodle/Stirling-PDF/blob/main/HowToUseOCR.md
It can do it straight from PDF and do multiple files at a time.
You can do the basic records via file. /etc/pihole/custom.list is a hosts formatted file for records so you don’t have to use a gui.
I had dns issues until I got my allowed ips squared away. You could try setting it to 0.0.0.0/0 if it’s not already to verify it’s not the problem.
The lines before it seem to imply you’ve run it before. If this is a new install I’d try dropping the scheme entirely and starting again.
I have to do anything passkey based on chrome on Android. No clue why. Had to recover my PSN account like 4 times before I figured out it was a Firefox problem.