A web app for using your Chromebook/iPad/Mobile as a monitor for your Playstation or Xbox using a capture card plugged into your USB port, no extra software is required, and uses your built in browser to capture and display the feed.
I have hosted it at simplecapture.space for convenience, but if you want you can download the index.html from this repository, save it somewhere easily accessible and just open that file in your browser (chrome/chrome based is recommended) for offline use :)