Here's my collection of tutorials, note however that they might get out of date. I should have tested them all however so I can assure you they all word at least at some point in time xD
10/04/24 How to make a Gemini capsule and website with Agate and Kineto
14/01/22 Setting up Barrier very easily, without GUI
10/01/22 How to install Postmill on Debian using Nginx
04/01/22 Messy video about cgi scripts on Gemini
31/12/21 APK of discontinued Ariane.
30/12/21 How to setup ngircd on Debian with SSL (TOR in bonus)
29/12/21 How to monitor HTTP(S) requests of an app on Android using mitmproxy