I gave it a whirl, and it definitely shows promise, but I actually failed to get it to work, I think :-)
I removed a couple of relays and added two new ones. So that I had 4 inbox and 2 outbox relays. Then I pressed publish, and got to sign a few events through my alby-hub extension. But then I got the following error:

One thing I think needs clarification is what is supposed to happen after that publish succeeds. Does that update my relay settings in Primal and Amethyst, or am I expected to do more there?
And an idea for a first step before getting to update the settings would be a basic "score" on my settings. Like "These settings look okay" or "You will have trouble reaching your followers" or "You will experience slow search" etc. If this worked well I could check this website every few months and check if my settings make sense still. I think that is a reasonable use case for a site like this, to be able to periodically check my settings.
