Long form is a separate kind, supports markdown. 

Some apps show it on the feed, some don't.

Habla highlighter and Yakihonne should all be interoperable, create in any of them.

Not sure what's better for privacy. We don't ask for email etc if that's your concern.

Npub.pro website is a nostr event describing who the author is and what content is included. Then our engine converts it into html pages.

You get npub.pro subdomain by default. Can also self host on any web server.

Let me know if this helps