Thanks for the guidance and the link — this helps.
One clarification on our setup: our main marketing site is not hosted on Vercel. We are planning to host only the documentation on Vercel.
We’ve already created a local Docusaurus setup and will likely push it to GitHub as the next step before importing it into Vercel.
Since we need to retain the existing example.com/docs/ path, our understanding is that this would be handled via our existing reverse proxy, routing /docs/* → the Vercel Docusaurus deployment