While building  Booth Beam , a digital signage tool, I ran into a problem that looks trivial at first glance: how do you connect a TV to a web app in a way that’s fast, reliable, and hard to mess up? You could force users to log in on a TV, but anyone who has ever typed an email and password with a remote knows how painful that is. There’s a reason most modern apps avoid that entirely. The approach used by apps like Netflix is simple and effective: pairing codes. Instead of logging in directly on the TV, you display a short code on the screen and let the user enter it on a device they actually enjoy using, like a phone or laptop. That small shift removes friction and makes the whole experience feel instant. In BoothBeam, the flow is straightforward. A user opens the app on a TV and immediately sees a pairing code. Then they open the web app on their laptop or phone, enter that code, and the TV is connected.…