On the "pro" side, uses code instead of pointy-clicky, and the integration with the audio source and waitFor looks really nice, useful, and intuitive.<p>I don't know typescript so much of the youtube demo (linked from here <a href="https://news.ycombinator.com/item?id=34900161" rel="nofollow">https://news.ycombinator.com/item?id=34900161</a>) was magic to me. I have worked with OpenSCAD some and prefer its declarative approach over imperative approaches. I don't know what all the author doesn't like about declarative, but the one example he gave in the video was that if you want to change the time of one keyframe, you have to adjust the time of all the keyframes that come after it, but that doesn't seem implied by a declarative model, maybe by some other particular tools?