He exhaled.
/tmp/home/root# opkg install adguardhome adguard home asus merlin
He saw one query from his own phone: reddit.com . Allowed. Followed by: redditmedia.com . Allowed. Followed by: google-analytics.com . Blocked. He exhaled
Here is the story of how AdGuard Home found a home on an ASUS Merlin router. adguard home asus merlin
He reduced the cache size. Turned off query logging. Set the upstreams to Cloudflare via DNS-over-TLS.