🔗 Elixir: why your LiveViews mount/3 shall be minimal and fast

There's one thing that you may do when developping your first LiveView apps (or developping applications in the early days of LV) that may have important consequences in production, or even during development, which may also become a bit hard to track down.

The LiveView documentation is excellent and easy to read, and there's a good paragraph on async operations. But it may not stress out enough how having blocking operations in your mount/3 callback may be a very terrible idea.