Contao is a wonderful tool for creating professional websites. We already know that. But there’s one major flaw which can easily destroy all the fun you had with Contao so far:
That really awful documentation for developers.
If you want to develop a custom module, you’re pretty much left alone. The official ressources (https://contao.org/en/manual.html) don’t show the complete creation process, which is highly needed in my opinion.
To help you out a little bit, I created a very simple slideshow module. Its really nothing special, but should show you whats happening behind the scenes.
Feel free to do whatever you want with this piece of code, and if you have any questions, don’t hesitate to drop a comment.