I have now made the portfolio site stable, secure, and chose for it to be an apex domain. Not for any particular practical sense that someone more knowledgable and nuanced about this kind of stuff would know about, but just because it was the easiest way to set it up so that the DNS records could be read correctly (4 single A records).

Now I have to pretty it up, since it just looks like the regular astro template with only a single line changed to prove I know where to look to edit it.