I still don't get the point of Substack. What can it do that you can't do with Wordpress and a few plugins, besides limit your control, customization, and monetization? Also its default (only?) font is ugly.
I actually tried doing this briefly and it was so annoying and janky I gave up. Substack is legit value. It’s a business and they’re not saintly in their terms, but acceptable. There’s also a 3rd party service that helps you use your own domain.