A Lottie is a JSON-based animation file format that enables designers to ship animations on any platform – web, iOS, Android etc. They are small files that work on any device and can scale up or down without pixelation. I'm using Figma to design the icons/illustrations then export them to After Effects where I create all the animations and then shipping the final file to the Lottie service which exports the json or gif file to hand over to the developers. In this case, it's for the Kaf' project, which you can read more about here
My role: Icon design and animations