docs(wake-word): sidebar entry, env-var reference row, voice-mode cross-link

website/docs/reference/environment-variables.md

@@ -154,6 +154,7 @@ For native Anthropic auth, Hermes prefers Claude Code's own credential files whe
 | `KREA_API_KEY` | Krea API key for Krea 2 image generation ([krea.ai](https://krea.ai/)) |
 | `GROQ_API_KEY` | Groq Whisper STT API key ([groq.com](https://groq.com/)) |
 | `ELEVENLABS_API_KEY` | ElevenLabs premium TTS voices ([elevenlabs.io](https://elevenlabs.io/)) |
+| `PORCUPINE_ACCESS_KEY` | Picovoice Porcupine wake-word engine ([console.picovoice.ai](https://console.picovoice.ai/)) — only for `wake_word.provider: porcupine`; the default openWakeWord and sherpa engines need no key |
 | `STT_GROQ_MODEL` | Override the Groq STT model (default: `whisper-large-v3-turbo`) |
 | `GROQ_BASE_URL` | Override the Groq OpenAI-compatible STT endpoint |
 | `STT_OPENAI_MODEL` | Override the OpenAI STT model (default: `whisper-1`) |

website/docs/user-guide/features/voice-mode.md

@@ -10,6 +10,8 @@ Hermes Agent supports full voice interaction across CLI and messaging platforms.
 
 If you want a practical setup walkthrough with recommended configurations and real usage patterns, see [Use Voice Mode with Hermes](/guides/use-voice-mode-with-hermes).
 
+For hands-free session start — saying "hey hermes" (or any phrase) to open a fresh voice session on the CLI, TUI, or desktop app — see [Wake Word](/user-guide/features/wake-word).
+
 ## Prerequisites
 
 Before using voice features, make sure you have:

website/sidebars.ts

@@ -109,6 +109,7 @@ const sidebars: SidebarsConfig = {
           label: 'Media & Web',
           items: [
             'user-guide/features/voice-mode',
+            'user-guide/features/wake-word',
             'user-guide/features/web-search',
             'user-guide/features/x-search',
             'user-guide/features/browser',