It's an open secret that you can find the email address from most GitHub users: it's in the git commit history! In the past, I would close repos and use git log to pull it out, but recently I learned that you can do it fairly easily via the GitHub API.

Create val
import { emailFromEvents } from "https://esm.town/v/stevekrouse/github-user-email/events.ts";

const emails = await emailFromEvents("stevekrouse");
console.log(emails); // [ "steveykrouse@gmail.com" ]