diff --git a/.gitea/workflows/pr-iphone-deploy.yml b/.gitea/workflows/pr-iphone-deploy.yml
index 55eb08b..546c6f2 100644
--- a/.gitea/workflows/pr-iphone-deploy.yml
+++ b/.gitea/workflows/pr-iphone-deploy.yml
@@ -1,15 +1,15 @@
 # =============================================================================
-# TabataGo — PR → Build → iPhone → Wait LGTM → Merge
+# TabataGo — PR → Build → Archive → Firebase OTA → Wait LGTM → Merge
 # =============================================================================
 # Chaque PR déclenche ce workflow :
 #   1. Build l'app sur le Runner Mac
-#   2. Installe sur l'iPhone (OTA via réseau local ou VPN)
+#   2. Archive → Export .ipa → Déploie via Firebase App Distribution
 #   3. Poste un commentaire sur la PR
 #   4. Attend un commentaire "LGTM" de Millian
 #   5. Merge automatique
 # =============================================================================
 
-name: PR → iPhone → LGTM
+name: PR → Build → Firebase OTA → LGTM
 
 on:
   pull_request:
@@ -26,7 +26,7 @@ jobs:
 
   # ─── Build + Deploy ────────────────────────────────────────────────────────
   build-deploy:
-    name: Build & Install on iPhone
+    name: Build & Deploy to Firebase OTA
     runs-on: macos
     timeout-minutes: 20
 
@@ -47,30 +47,40 @@ jobs:
           cd tabatago-swift
           xcodegen generate
 
-      - name: Install ios-deploy
-        run: brew install ios-deploy
+      - name: Install Firebase CLI
+        run: brew install firebase-cli
 
-      - name: Build & Install on iPhone
-        env:
-          IPHONE_UDID: ${{ secrets.IPHONE_UDID }}
+      - name: Archive app
         run: |
           cd tabatago-swift
-
-          # Build for device
-          xcodebuild build \
+          xcodebuild archive \
             -scheme TabataGo \
             -sdk iphoneos \
-            -destination "platform=iOS,id=${IPHONE_UDID}" \
+            -destination "generic/platform=iOS" \
             -configuration Debug \
+            -archivePath ../build/TabataGo.xcarchive \
             -allowProvisioningUpdates \
-            -derivedDataPath ../build \
-            CODE_SIGN_STYLE=Automatic \
-            2>&1 | tail -20
+            CODE_SIGN_STYLE=Automatic
 
-          # Install on connected iPhone
-          ios-deploy --bundle ../build/Build/Products/Debug-iphoneos/TabataGo.app --id ${IPHONE_UDID}
+      - name: Export IPA
+        run: |
+          xcodebuild -exportArchive \
+            -archivePath ../build/TabataGo.xcarchive \
+            -exportPath ../build/ \
+            -exportOptionsPlist ExportOptions.plist \
+            -allowProvisioningUpdates
 
-          echo "✅ App built for iPhone (UDID: ${IPHONE_UDID})"
+      - name: Deploy to Firebase App Distribution
+        env:
+          FIREBASE_APP_ID: ${{ secrets.FIREBASE_APP_ID }}
+        run: |
+          echo "${{ secrets.FIREBASE_SERVICE_ACCOUNT }}" | base64 -d > /tmp/firebase-key.json
+          export GOOGLE_APPLICATION_CREDENTIALS=/tmp/firebase-key.json
+          firebase appdistribution:distribute ../build/TabataGo.ipa \
+            --app "${FIREBASE_APP_ID}" \
+            --groups "millian-test" \
+            --release-notes "PR: ${{ github.event.pull_request.title }}"
+          rm /tmp/firebase-key.json
 
       - name: Post "Ready to test" comment
         env:
@@ -79,7 +89,7 @@ jobs:
         run: |
           PR="${{ github.event.pull_request.number }}"
           REPO="${{ github.repository }}"
-          BODY="## 📱 Prêt à tester !\\n\\nL'app a été déployée sur ton iPhone.\\n\\n- Teste les changements\\n- Reply **LGTM** pour merger\\n- Reply **KO** pour bloquer"
+          BODY="## 📱 Prêt à tester !\\n\\nL'app a été déployée via Firebase App Distribution.\\n\\n- Teste les changements\\n- Reply **LGTM** pour merger\\n- Reply **KO** pour bloquer"
           curl -s -X POST \
             -H "Authorization: token ${GT_TOKEN}" \
             -H "Content-Type: application/json" \