Settings
License
Free tier — first 3 problems unlocked. Enter a license key for full access.
AI Coach (BYOK)
Your API key is stored in your browser's localStorage. When you use the AI Coach, the key is sent to this app's server and forwarded straight to the AI provider you picked — we don't persist it server-side or log it. The key only leaves your browser when you actively use the coach; otherwise it stays local.
Coding Language
Sets the language for code stubs and AI coaching. Select an editor below to set up your environment.
Open-source editors for TypeScript
Curriculum
Re-run onboarding to change your level or timeline.