content:
"I'll preface the following content with a big caveat: I'm not an expert in unicode, punycode, or URI/URL specifications. So take all of this with many grains of salt and please reach out to me with any corrections!
## On the protocol layer (PDS, lexicons)
## In the reference implementation
`@atproto/syntax` is the reference implementation for parsing URLs (at least in JS/TS, there's likely a golang implementation in the [indigo](https://github.com/bluesky-social/indigo) repo but I haven't checked)
## Within the Bluesky app"