For custom domains, currently works with CNAME, which redirects your entire domain to the relay. That's fine for a subdomain, but if you want your identity on your root domain, you probably already use it for something else.
We will add support for that. The relay will handle everything on a subdomain you dedicate to Holos, and automatically generate a webfinger file to host on your root domain. Your identity will be @you@yourdomain.com while the setup runs on a subdomain.

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