.env.example

# GEMINI_API_KEY: Required for Gemini AI API calls.
# AI Studio automatically injects this at runtime from user secrets.
# Users configure this via the Secrets panel in the AI Studio UI.
GEMINI_API_KEY="MY_GEMINI_API_KEY"

# APP_URL: The URL where this applet is hosted.
# AI Studio automatically injects this at runtime with the Cloud Run service URL.
# Used for self-referential links, OAuth callbacks, and API endpoints.
APP_URL="MY_APP_URL"

# --- Vercel Native Stack Variables ---
# If you deploy to Vercel, add these to your Vercel Environment Variables.
# The app will automatically use them instead of local SQLite/Disk storage.

# BLOB_READ_WRITE_TOKEN: Used for Vercel Blob storage (saving student PDFs)
BLOB_READ_WRITE_TOKEN=""

# POSTGRES_URL: Used for Vercel Postgres / Neon DB (saving student grades)
POSTGRES_URL=""