Eglot with multiple LSP servers per buffer using rassumfrassum

I'll start by admitting something upfront: for a long time, I was
very vocal about not recommending Eglot if you were working with a
modern web development stack, especially things like React,
TypeScript, ESLint, Tailwind, Vue, etc. I even said so publicly in
GitHub issues and discussions.

That said, I always liked Eglot.

More than liked, actually. Eglot always felt