Moving from CI3 - 4

Hello !

Here are some advices I would give you:
1/ I won't use things like "$this->uri->segment(3)", instead i would use routes definition: https://codeigniter4.github.io/userguide...aceholders
2/ I would use a model, yes. In CI3, I found it complicated, but in CI4 it is super easy: https://codeigniter4.github.io/userguide...your-model

So, I would use routes placeholders to manage incoming requests, create a "BeerModel" to interact with the database (and fetch the content), use the controller to manage all this and send the result to the view.

Please note that CI4 use a different way to load views: https://codeigniter4.github.io/userguide...ing-a-view