Well, the website is up. Mastodon is linked. Matrix… Not so much. If anyone is interested I can be found here: matrix://@paul:astaluk.icu
On second thought, I figured it out.
It turns out that the Matrix Foundation runs a url shortener (sort of) service that allows web browsers to understand matrix addresses. Nice.
Their page is located at https://matrix.to and once there all you have to do is enter you user or room id and they will give you a link.