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Navigate to GitHub and select "Sign Up" near the top right-hand corner of the page.
Enter your syr.edu email address.
Create a password.
Best practice is to have a different password than your Syracuse University NetID.
Create a username.
Solve the captcha and create your account.
After creating your account, multifactor will need to be enabled - navigate to the GitHub Passkey Setup for YubiKey and follow the instructions for MFA.