https://runninginproduction.com/podcast/83-songrender-lets-you-create-audio-visualizer-videos-from-audio-clips
SongRender Lets You Create Audio Visualizer Videos from Audio Clips — Running in Production Podcast...
Jake Lazaroff talks about building a video rendering service with Express and Node. It's hosted on a few DigitalOcean servers.
running in productioncreate audiosongrenderlets