http://e2guardian.org/cms/index.php Same features as squidquard which is often requested but active developed. I'd build a plugin around it.
Next question: how would I go about loading this into OPNSense? Doesn't look like it's in the package list.
If you send me your configuration I can build a plugin. Just finished chrony, so, I have time
HiAgreed with @ciobu23 E2guardian is the best opensource web Filtering solution and it will be a great addition to OPNsense .Waiting for this to be included in plugin so that we can move to OPNsense from Pfsense.Using this from many years and it's been flawless.