I know there are plenty of alternatives, but I personally benefit a lot more from a dead simple web page, that does everything locally. It also helps with burnout, I like building very simple, but useful things (at least for myself).
I also have plans for a more serious project though. For a long time now I've been writing down what I would want from a ShaderToy-like website but for SVGs. I feel like there's a lot of potential in making it easy to create and reuse amazing animations with very little code.
I've also seen a lot of people praise the React + SVG combo and I can see why. I'd personally love an environment that I could just spin up instantly, create paths interactively, then create some effects quickly, and then use them wherever I want.
What i am working next: is actually the next version of that eval. The assessments can be improved in lots of ways and there are much more cases coming.
No gamification, no silly chat bots. Built from first principles after learnings from writing https://thehardway.guide