GIF encoder / decoder

This article from Dennis Felsing captured my attention i seconds. "Can you really embed a GIF with code? Can you do it in a way that connects to a central server?" If yes, then tracking pixels here we come!

Can this be used to create a tracking pixel that sends data back to a server?

https://github.com/devongovett/gif-stream

If anyone has tried using this, please share.