As a huge sports fan, I always found one thing missing while watching live matches.

Sometimes I wanted to celebrate a goal, discuss a referee decision, or react with my friends—but I didn't want to switch to Discord, WhatsApp, Reddit, or X. I wanted everything to happen right beside the stream.

So, I decided to build Sidekick.

The Idea

Sidekick is a Chrome extension that lets people watching the same sporting event join a shared room and chat in real time without leaving the video.