And if anyone needs something more powerful than #PiHole for web filtering, #e2guardian (formerly dansguardian) is pretty impressive.
It has filtering groups, can act as its own proxy, does authentication and deep url scanning. Very capable!
Yeah, my first port (with help from others of course) is commited to the official ports tree of #OpenBSD #e2guardian https://cvsweb.openbsd.org/cgi-bin/cvsweb/ports/www/e2guardian/
ports/www/e2guardian/

OpenBSD source via CVSweb

'[NEW] www/e2guardian' - MARC

EOLE 2.6.2 utilisation de la version 4.1 de #e2guardian pour le filtrage web