This is a simple animated watch face for Wear OS inspired by the countdown timer animation on the Google I/O app and website.
The animation uses Airbnb's Lottie, which is a pretty impressive tool - but which strains the capabilities of 2016-era Wear hardware. I wish we had 2018-era Wear hardware to run it on, but alas, none is available.
All graphics in the app are extracted from the I/O app or website, and presumably are © Google Inc.