What's the public folder?

With a fresh install of parse-server, I notice a public folder. Is it possible to put an index.html in there? If so, how do I enable it and at what url? I put an index.html in there but can’t access it.

$ sh <(curl -fsSL https://raw.githubusercontent.com/parse-community/parse-server/master/bootstrap.sh)
$ npm install -g mongodb-runner
$ mongodb-runner start
$ npm start

You can do that but you will have to setup your Express.js app to serve the static files from this folder in the url you choose: https://expressjs.com/en/starter/static-files.html

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Thanks @davimacedo! I figured it out, but glad to have this question answered for future inquires ;-).