There are blogging platform on Gemini://

• SmollPub
• Tildeverse
• Tilde.pink
• Tilde.town
• Gemcities
• Self-hosting, see https://kevinboone.me/gemini_vps.html while learning from https://html-chunder.neocities.org/posts/self-hosting-a-gemini-capsule/

There are many structure available to build such gemini sites.
Because there are text limitations, Gemini favorises ASCII art.

Gemini doesn't have anything like PHP or server-side JavaScript, but it does support old-school CGI (Common Gateway Interface) scripting. Instead of serving a static .gmi file, your server runs a script and pipes what it prints to stdout back to the client as the response.

The author shares many gemini links