So, I guess the service kind of already does exist: https://blockdyor.com/rigly-review/ ... maybe even better than what I was thinking, but I haven't had a chance to investigate in detail, yet.

Weird that my Nostr feed is suddenly full of nostr:npub1t6el40knsq8hmrpr0m6tt3t0tr4pdeyhlt2qelwhgtwawddqx0xsv03scu .