Matrjoschka of phoenix communication

Phoenix, the powerful Elixir web framework, is renowned for its real-time capabilities. But with terms like Channels, Presence, and PubSub floating around, it’s easy for newcomers to feel overwhelmed. What exactly do these components do, and how do they relate to each other? If you’ve found yourself puzzling over the differences between Phoenix Channels and PubSub, or wondering when to use which…