Of course it wasn’t that easy. A little more testing on my part and using webfinger would have probably helped. Oh well.

location = /.well-known/webfinger {
    try_files $uri $uri/ /index.php?$args;
}

location = /.well-known/nodeinfo {
    try_files $uri $uri/ /index.php?$args;
}

I had to add a little glue to my nginx configuration, otherwise queries were not routed to the right place.

Of course now, this is another live test after I have successfully followed my blog from main mastodon account, so… fingers crossed!

Edit: And now that I have added src code plugin, let’s see if this looks better.