During onboarding, you'll be asked for your first name (optional) and a username. Your first name is used to personalize emails. Your username determines your public portfolio URL (app.soundtoggle.io/u/yourusername). You can change your username later in Settings → Account.
Username rules:
- Minimum 3 characters, maximum 30
- Letters, numbers, underscores, and hyphens only
- Case-insensitive (stored lowercase)
- Must be unique across all SoundToggle users