As an aside, I used to think that when Emerson said that “a foolish consistency is the hobgoblin of little minds” he meant that we were foolish to try and be consistent. Increasingly I wonder if instead he meant that when you’re trying to reason with people who may not have the same detailed knowledge of a problem as you, there’s an enhanced importance to being consistent. Unfortunately, most policy makers globally don’t have a detailed understanding of how technical systems like DNS work, so we think it’s especially important we be consistent.

1.1.1.1 does not send EDNS ECS data, specifically because of the privacy concern. So the hypothetical secondary resolver would need to send that data, for people who aren’t concerned about the privacy implications / want to get to archive.is.

Given CloudFlare’s stated message of prioritizing privacy, it seems unlikely they’d stand up infrastructure that behaved like 1.1.1.1 except that it leaked more private information.

You'll need to add a hosts file to your iCloud Drive.

Although, I believe Cloudflare DNS app on iphone uses a VPN iOS API to do it's thing, so it should be possible to put dnsmasq-like functionality into an iOS app. I don't know if this exists already.