Very simple stuff conceptually.
I want to add a next / previous button to the bottom of each of my posts, ideally with the title of said next post.
I use no theme.
I have one flat content folder with everything in it, so no “sections”.
Somewhat related: what’s the recommended way to introduce mutually exclusive categories? sections or taxonomies? EDIT: I should probably use taxonomies since I’d otherwise loose the ability to have a “recent posts” section on my landing page #1170
Also, why are the taxonomy docs so …inaccessible?
People basically just want tags, yet it looks like it requires rocket science to implement without breaking the rest of a minimal site
You will have at least one section, the default one. If you set a sort_by in it (see Section | Zola for the details), you get page.lower and page.higher that corresponds to previous/next. See GitHub - getzola/even: A clean blog theme for Zola for example for a theme that has what you want.
Also, why are the taxonomy docs so …inaccessible?
People basically just want tags, yet it looks like it requires rocket science to implement without breaking the rest of a minimal site
What do you mean breaking the site? What’s inaccessible in Taxonomies | Zola ?
Many people want way more than tags.