In my practice, designers bring me JSON so I can run it in the browser using Lotti. Then I put it on the CDN, and it's cached there. Mobile development also uses the same JSON. As if popcorn isn't for me?
It's early days in the project, but you should be able to put a CSS file on the CDN and use it the same way. I'm calling it CSS but it isn't not "CSS". It's technically a CSS-like DSL that runs in a custom player on web and mobile. It doesn't use the DOM. The difference would be authoring new animations as there is no real integration with any design tools yet. I have a PoC level Figma plugin. The way to create new animations at this stage would be converting existing Lotties, SVGs, or prompting new animations with the skill or Copilot feature.