NEXT_PUBLIC_FASTAPI_BACKEND_URL=http://localhost:8000

# Server-only. Internal backend URL used by Next.js server code.
FASTAPI_BACKEND_INTERNAL_URL=https://your-internal-backend.example.com

NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE=LOCAL or GOOGLE
NEXT_PUBLIC_ETL_SERVICE=UNSTRUCTURED or LLAMACLOUD or DOCLING
NEXT_PUBLIC_ZERO_CACHE_URL=http://localhost:4848

# Contact Form Vars (optional)
DATABASE_URL=postgresql://postgres:[YOUR-PASSWORD]@db.sdsf.supabase.co:5432/postgres

# Deployment mode (optional)
NEXT_PUBLIC_DEPLOYMENT_MODE="self-hosted" or "cloud"

# PostHog analytics (optional, leave empty to disable)
NEXT_PUBLIC_POSTHOG_KEY=

# Cloudflare Turnstile CAPTCHA for anonymous chat abuse prevention
# Get your site key from https://dash.cloudflare.com/ -> Turnstile
NEXT_PUBLIC_TURNSTILE_SITE_KEY=

# Google AdSense (optional, only enables ads on the /free hub page).
# Publisher ID from your AdSense dashboard, e.g. ca-pub-XXXXXXXXXXXXXXXX.
# Leave empty to disable ad rendering entirely.
NEXT_PUBLIC_GOOGLE_ADSENSE_CLIENT_ID=
# Ad unit slot IDs from AdSense dashboard -> Ads -> By ad unit.
# Leave empty to hide individual slots while keeping the script loaded.
NEXT_PUBLIC_GOOGLE_ADSENSE_SLOT_FREE_HUB_IN_CONTENT=
NEXT_PUBLIC_GOOGLE_ADSENSE_SLOT_FREE_HUB_BEFORE_FAQ=