diff --git a/.gitea/workflows/pr-iphone-deploy.yml b/.gitea/workflows/pr-iphone-deploy.yml
index 7c6c6a8..d762885 100644
--- a/.gitea/workflows/pr-iphone-deploy.yml
+++ b/.gitea/workflows/pr-iphone-deploy.yml
@@ -35,13 +35,38 @@ jobs:
       - name: Setup PATH
         run: echo "/opt/homebrew/bin" >> $GITHUB_PATH
 
-      - name: Clean act runner caches
+      - name: Clean SPM + Xcode caches (aggressive)
         run: |
-          rm -rf ~/.cache/act/*/hostexecutor/tabatago-swift/build
-          rm -rf .build
+          echo "🧹 Nettoyage agressif des caches SPM/Xcode..."
+
+          # Act runner caches
+          rm -rf ~/.cache/act/*/hostexecutor/tabatago-swift/build 2>/dev/null || true
+
+          # SPM caches — tous les emplacements connus
           rm -rf ~/Library/Caches/org.swift.swiftpm
-          rm -rf ~/Library/Developer/Xcode/DerivedData/TabataGo-*
+          rm -rf ~/Library/org.swift.swiftpm
+          rm -rf ~/.swiftpm
+
+          # Xcode DerivedData — suppression COMPLÈTE (le bundle ID a changé,
+          # l'ancien dossier TabataGo-* peut être ignoré par le nouveau build)
+          rm -rf ~/Library/Developer/Xcode/DerivedData/*
+
+          # Module cache Xcode — des .pcm stale peuvent segfault le linker
+          rm -rf ~/Library/Developer/Xcode/DerivedData/ModuleCache.noindex 2>/dev/null || true
+          rm -rf ~/Library/Caches/com.apple.dt.Xcode
+
+          # Build artifacts locaux (utilisés par le step "Build app")
+          rm -rf build/
+          rm -rf .build
+          rm -rf tabatago-swift/.build
           rm -rf tabatago-swift/TabataGo.xcodeproj
+          rm -rf tabatago-swift/*.xcworkspace 2>/dev/null || true
+
+          # Package.resolved — peut être stale après un changement de bundle ID
+          find . -name "Package.resolved" -delete 2>/dev/null || true
+          find . -name ".package.resolved" -delete 2>/dev/null || true
+
+          echo "✅ Caches nettoyés"
 
       - name: Install tools (xcodegen, node, firebase)
         run: |
@@ -56,7 +81,11 @@ jobs:
       - name: Resolve SPM packages
         run: |
           cd tabatago-swift
-          xcodebuild -resolvePackageDependencies -project TabataGo.xcodeproj -scmProvider system
+          xcodebuild -resolvePackageDependencies \
+            -project TabataGo.xcodeproj \
+            -scmProvider system \
+            -derivedDataPath ../build/derived \
+            -clonedSourcePackagesDirPath ../build/spm-cache
 
       - name: Build app
         run: |