“For example, if you send a message from Beeper to a friend on WhatsApp, the message is encrypted on your Beeper client, sent to the Beeper web service, which decrypts and re-encrypts the message with WhatsApp’s proprietary encryption protocol.”
So, not really end to end for most common use-cases.
One way is to run Pi-hole’s admin interface on a different port. That’s configured in:
Set:
server.port := 8000
Then your URL is http://IP:8000/admin