Here's what that tool's user interface looks like:

In order to customize your Stream Deck, you'll install an app on your computer that lets you create profiles and assign actions to keys. There are enough options that I don't have to swap between folders during any given scenario, but it's not massive like the XL. I personally have the standard and I think it's a fantastic size. Here are links to all three, if you're interested:

There are three sizes of Stream Deck, but the standard 16-key is the only one you can find easily on Amazon. If you want to get a bit fancier with Stream Deck, though, you can also organize your actions into 'profiles' (sort of the different pages of apps in the iOS home screen), or create 'multi-actions', which trigger more than one action when you press a single key.

The simplest and most common uses for Stream Decks are toggling mics, switching scenes in OBS, playing sounds, and triggering actions in other tools like Twitter. But there are also some other broadly useful integrations, like media controls, social media push, and more. The actions you can take are primarily targeted at streamers, so many integrations work with streaming tools like OBS and control mics and screens. There are three sizes, and each is essentially a mini keyboard where each key can be customized to show any icon you want and take any of a series of actions when pressed. The Stream Deck is a class of hardware device created by Elgato. So, let's take a look at this little device that powers so much of my streaming. When I wrote my post about getting started live streaming, I wanted to share my Stream Deck setup as well, but I figured it was a bit more appropriate in its own post.

Is the stream deck out