have you looked at asciidoc?

i am using it on my docs in my repos now, for one major reason being that it has an actual working built-in table of contents, and its tables are sane and readable without being rendered, the links are simple to understand: link:http://example.com[display text] and it lets you do a bunch of other cool stuff, the quoted preformated text is just two spaces indent though also you can use many of the more familiar things like backtick fences and single backticks `like this`

we will be using it as a standard for #alexandria because that is a book oriented application, also, so, it will happen

long form nostr posts have kinda not really caught on because the clients are crappy and actually without a reward people are not that interested in doing anything other than short notes

but it would be nice to be able to at least do sections, headings, quoted source code type blocks, and similar, for discussions