diff --git a/apps/gnome-extension/jarvis@qvac.local/schemas/gschemas.compiled b/apps/gnome-extension/jarvis@qvac.local/schemas/gschemas.compiled
new file mode 100644
index 0000000..3a62264
Binary files /dev/null and b/apps/gnome-extension/jarvis@qvac.local/schemas/gschemas.compiled differ
diff --git a/daemon/qvac-master.js b/daemon/qvac-master.js
index 50db71e..28dc732 100644
--- a/daemon/qvac-master.js
+++ b/daemon/qvac-master.js
@@ -99,16 +99,18 @@ function resolveModelConfigAssets(sdk, config) {
 
 /** Load ASR/TTS models in the same SDK worker and under the same master lock.
  * These are auxiliary model IDs; they do not create another QVAC runtime. */
-export async function loadAuxiliaryModel(name, modelConfig = {}) {
+export async function loadAuxiliaryModel(name, modelConfig = {}, modelType = undefined) {
   if (!name) throw new Error('auxiliary QVAC model name is required');
   const existing = auxiliaryModels.get(String(name));
   if (existing) return existing;
   const sdk = await qvacSdk();
   if (typeof sdk.loadModel !== 'function') throw new Error('QVAC SDK does not expose loadModel()');
-  const modelId = await withQvacMaster(() => sdk.loadModel({
+  const loadOptions = {
     modelSrc: resolveSdkAsset(sdk, name),
     modelConfig: { ...resolveModelConfigAssets(sdk, modelConfig), device: 'gpu', gpu_layers: QVAC_MASTER.gpuLayers, 'mmproj-use-gpu': true },
-  }));
+  };
+  if (modelType) loadOptions.modelType = modelType;
+  const modelId = await withQvacMaster(() => sdk.loadModel(loadOptions));
   auxiliaryModels.set(String(name), modelId);
   return modelId;
 }
diff --git a/daemon/voice-adapters.js b/daemon/voice-adapters.js
index c424d90..790270d 100644
--- a/daemon/voice-adapters.js
+++ b/daemon/voice-adapters.js
@@ -11,8 +11,8 @@ export class QvacVoiceAdapter extends EventEmitter {
     assertSdkVersion();
     await acquireQvac(); this.acquired = true;
     try {
-      this.asrId = await loadAuxiliaryModel(this.asrModel, { vadModelSrc: 'VAD_SILERO_5_1_2', audio_format: 's16le', language: 'en', no_timestamps: true, vad_params: { threshold: 0.6, min_speech_duration_ms: 300, min_silence_duration_ms: 700, max_speech_duration_s: 15, speech_pad_ms: 200 } });
-      this.ttsId = await loadAuxiliaryModel(this.ttsModel, { ttsEngine: 'supertonic', language: 'en', voice: 'F1', ttsSpeed: 1.05, ttsNumInferenceSteps: 5 });
+      this.asrId = await loadAuxiliaryModel(this.asrModel, { vadModelSrc: 'VAD_SILERO_5_1_2', audio_format: 's16le', language: 'en', no_timestamps: true, vad_params: { threshold: 0.6, min_speech_duration_ms: 300, min_silence_duration_ms: 700, max_speech_duration_s: 15, speech_pad_ms: 200 } }, 'whisper');
+      this.ttsId = await loadAuxiliaryModel(this.ttsModel, { ttsEngine: 'supertonic', language: 'en', voice: 'F1', ttsSpeed: 1.05, ttsNumInferenceSteps: 5 }, 'tts');
     } catch (error) { await this.stop(); throw error; }
   }
 
diff --git a/packaging/build-extension.sh b/packaging/build-extension.sh
index 7292562..c9b4488 100755
--- a/packaging/build-extension.sh
+++ b/packaging/build-extension.sh
@@ -4,6 +4,9 @@ ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 OUT_DIR="${ROOT_DIR}/dist"
 mkdir -p "${OUT_DIR}"
 rm -f "${OUT_DIR}/jarvis-qvac-extension.zip"
+if command -v glib-compile-schemas >/dev/null; then
+  glib-compile-schemas "${ROOT_DIR}/apps/gnome-extension/jarvis@qvac.local/schemas" >/dev/null
+fi
 ( cd "${ROOT_DIR}/apps/gnome-extension" && zip -q -r "${OUT_DIR}/jarvis-qvac-extension.zip" "jarvis@qvac.local" -x '*/__pycache__/*' -x '*.pyc' )
 test -s "${OUT_DIR}/jarvis-qvac-extension.zip"
 echo "${OUT_DIR}/jarvis-qvac-extension.zip"
diff --git a/packaging/install.sh b/packaging/install.sh
index 9d19ed0..39de0ac 100755
--- a/packaging/install.sh
+++ b/packaging/install.sh
@@ -3,7 +3,7 @@ set -euo pipefail
 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 command -v zip >/dev/null || { echo "zip is required to register the GNOME extension" >&2; exit 1; }
 APP_DIR="${HOME}/.local/share/jarvis-qvac"
-EXT_DIR="${HOME}/.local/share/gnome-shell/extensions/jarvis@qvac.local"
+EXT_DIR="${XDG_DATA_HOME:-${HOME}/.local/share}/gnome-shell/extensions/jarvis@qvac.local"
 CONFIG_DIR="${HOME}/.config/jarvis"
 CACHE_DIR="${XDG_CACHE_HOME:-${HOME}/.cache}/jarvis/models"
 mkdir -p "${APP_DIR}" "${EXT_DIR}" "${CONFIG_DIR}" "${HOME}/.config/systemd/user" "${CACHE_DIR}"
@@ -35,6 +35,9 @@ if command -v gnome-extensions >/dev/null && gnome-extensions install --force "$
 else
   cp -a "${ROOT_DIR}/apps/gnome-extension/jarvis@qvac.local/." "${EXT_DIR}/"
 fi
+if command -v glib-compile-schemas >/dev/null && [[ -d "${EXT_DIR}/schemas" ]]; then
+  glib-compile-schemas "${EXT_DIR}/schemas" >/dev/null
+fi
 sed "s#__JARVIS_BARE__#${BARE_BIN}#" "${ROOT_DIR}/packaging/jarvisd.service" > "${HOME}/.config/systemd/user/jarvisd.service"
 if [[ ! -f "${CONFIG_DIR}/qvac.config.json" ]]; then
   sed "s#__JARVIS_CACHE__#${CACHE_DIR}#g" "${ROOT_DIR}/packaging/qvac.config.template.json" > "${CONFIG_DIR}/qvac.config.json"