This is really interesting project. I have closed the webpage at first, because I thought it is closed source, but then found your repository on a github.

I do not want to make some promo for other projects, but how you achieve trust with the signed list of fingerprints, is something similar I have read earlier there: https://tech.firstlook.media/keylist-rfc-explainer

Interesting prioject, will be watching it!

Keen to get folks' feedback on this. I'm all ears! Here or privately, I'm paul at fluidkeys dot com.