Mozilla has rewritten MDN to use web components instead of React. I'm glad see they also use Lit for their components and RSPack as their bundler. I rewrote Converse.js into web components about 5 years ago and also opted for Lit components and later on I migrated to RSPack. So it's nice to get a little vindication for these decisions (even though I never really doubted them for Converse). https://developer.mozilla.org/en-US/blog/mdn-front-end-deep-dive/