hzrd149 on Nostr: Okay... Cool... What's the API? You can't just say this and not mention what the ...

Okay... Cool... What's the API?
You can't just say this and not mention what the JavaScript API is

These type of posts bug me because they don't provide any technical explanation or any way for me to verify this myself.
So we are just supposed to trust this guy on twitter and believe that whatever source code he linked is in the chromium browser?