The Twilio team provided backpacks nicknamed "hackpacks" with a small 8×8 LED matrix at their conference, Signal. The hackpack proved to be a blast for everyone from hackers to non-technical attendees alike, and was used to create various projects such as logos, mind-blowing visualizations, and games like Pong and tic-tac-toe. Developers were able to showcase their creativity and skills with the limited display space, with many submitting their projects online or tweeting about them. The Twilio team is collecting all of these hacks at a Github repo and invites others to submit their own projects, providing resources to help get started.