I assume thereβs an API to allow individuals to develop their own front end if they wanted? Is there any documentation to this end?
Yes there's an API (docs here), but the docs are little more than type definitions right now so it takes a bit of digging to figure out what you're meant to do. You can look through all the methods on the LemmyHttp section of the docs, and watch the network tab in your browser's dev tools to figure out which APIs are called.