I would focus less on "vanilla JavaScript" as the ecosystem from which good components will arise and focus more on web components (which, generally speaking, a

I would focus less on "vanilla JavaScript" as the ecosystem from which good components will arise and focus more on web components (which, generally speaking, are vanilla JavaScript). There is a thriving and growing sector of the frontend space where web components and WC-based design systems are coming to the forefront. Shoelace is a fantastic library in this vein. Libraries like htmx, Alpine, Turbo, etc. benefit greatly from web components.