# Public URL of the frontend NEXT_PUBLIC_APP_URL=http://localhost:3000 # Internal service URLs (server-side only, BFF pattern) AUTH_SERVICE_URL=http://localhost:4000 CHAT_API_URL=http://localhost:8000 # NextAuth.js v5 — generate with: openssl rand -base64 32 NEXTAUTH_SECRET=change-me-in-production AUTH_TRUST_HOST=true # OAuth providers GOOGLE_CLIENT_ID= GOOGLE_CLIENT_SECRET= GITHUB_CLIENT_ID= GITHUB_CLIENT_SECRET=