diff --git a/.env.example b/.env.example
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+# Browser/client gateway URL
+NEXT_PUBLIC_GATEWAY_URL=ws://localhost:18789
+
+# App server
+# PORT=3000
+# HOST=127.0.0.1
+
+# Optional: required only for public/remote deployments
+# STUDIO_ACCESS_TOKEN=
+
+# Optional: voice features
+# ELEVENLABS_API_KEY=
+# ELEVENLABS_VOICE_ID=21m00Tcm4TlvDq8ikWAM
+# ELEVENLABS_MODEL_ID=eleven_flash_v2_5