Update #2: GSAP is wrapping Lottie, and the animation is being triggered by Scroll Magic.   I have been able to get the most basic of functionality of Lottie working with ScrollMagic + GSAP. Once the ScrolLMagic scene is triggered and command to .play() the lottie scene is run.   I believe the next step in this process will be figuring out how ScrollMagic and GSAP pass commands to each other, and then passing that information through and converting it to something Lottie unde