Signing in only proves it’s you

It’s how we know the account is really yours, so nobody can put you on the board but you. All we take from GitHub is your username.

• ✓We don’t read your code, and we can’t open your private repos
• ✓We don’t read your email
• ✓We can’t post, commit or change anything on GitHub
• ✓We don’t keep your GitHub token. It’s thrown away as soon as we’ve read your username

Your numbers come from your contribution graph, the same one anyone can see on your GitHub profile. You can leave anytime and your counts are deleted.