first audio thing that i want to try

.env.example

@@ -15,6 +15,19 @@ DB_PATH=/data/guestbook.db
 HOST=0.0.0.0
 PORT=3000
 
+# --- TTS (scripts/tts_generate.py) ---
+# Provider: "google" (default, 1M chars/month free), "mistral", or "openai"
+TTS_PROVIDER=google
+
+# Google Cloud TTS — https://console.cloud.google.com/apis/credentials
+GOOGLE_API_KEY=
+
+# Mistral Voxtral TTS — https://console.mistral.ai/api-keys
+# MISTRAL_API_KEY=
+
+# OpenAI TTS-1 — https://platform.openai.com/api-keys
+# OPENAI_API_KEY=
+
 # --- Development overrides ---
 # For local dev (npm run dev), override with:
 # COOKIE_SECURE=false