This page is some notes about learning Svelte. This has been recommended for projects as a simplified framework. I like what I've seen so far. Prerequisites for Svelte seem to be knowing javascript. I like how Svelte makes use of curly braces for adding variables to parts of the content. That definitely works with my brain better than a lot of other systems I've glanced at over the years.
After looking at React, I think Svelte may be the way I go for building the Rotoscope Project.