diff --git a/.gitignore b/.gitignore
index 4775b35..83c4de0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,4 +24,6 @@ playwright-report/
 desktop/target/
 desktop/python-embed/
 desktop/frontend-static/
+desktop/backend/
+desktop/frontend/
 
diff --git a/desktop/build-windows.bat b/desktop/build-windows.bat
index 9bdee72..464bbff 100644
--- a/desktop/build-windows.bat
+++ b/desktop/build-windows.bat
@@ -11,28 +11,26 @@ echo ========================================
 echo.
 
 REM ── 0. Kill any leftover backend from a previous run ──────────
-echo [0/5] Killing leftover Python processes...
+echo [0/6] Killing leftover Python processes...
 taskkill /F /IM python.exe 2>nul
 echo.
 
 REM ── 1. Vérifier les prérequis ─────────────────────────────────
-echo [1/5] Verifying prerequisites...
+echo [1/6] Verifying prerequisites...
 where cargo >nul 2>&1 || (echo ❌ Rust/Cargo not found. Install from https://rustup.rs & exit /b 1)
 where tauri >nul 2>&1 || cargo install tauri-cli
 echo ✅ Rust + Tauri OK
 
 REM ── 2. Préparer Python 3.11 embed ─────────────────────────────
-echo [2/5] Preparing Python embed...
+echo [2/6] Preparing Python embed...
 echo 📥 Downloading Python 3.11 embed...
 if exist "python-embed" rmdir /s /q "python-embed"
 curl -L -o python-embed.zip "https://www.python.org/ftp/python/3.11.9/python-3.11.9-embed-amd64.zip"
 powershell Expand-Archive -Path python-embed.zip -DestinationPath python-embed\
 del python-embed.zip
 
-REM Enable pip and site-packages in embedded Python
+REM Enable pip and site-packages + parent dir for 'import backend'
 echo import site >> python-embed\python311._pth
-
-REM Add parent dir to Python path so 'import backend' works at runtime (for bundle)
 echo ..>> python-embed\python311._pth
 
 REM Download get-pip.py (embed Python doesn't include ensurepip)
@@ -45,31 +43,40 @@ REM Install dependencies
 python-embed\python.exe -m pip install --no-cache-dir -r ..\backend\requirements.txt
 echo ✅ Python embed ready
 
+REM ── 2b. Copier backend + frontend localement pour le bundle ────
+echo [2b/6] Staging backend + frontend for bundle...
+if exist "backend" rmdir /s /q "backend"
+if exist "frontend" rmdir /s /q "frontend"
+xcopy /E /I /Q /Y "..\backend" "backend"
+xcopy /E /I /Q /Y "..\frontend" "frontend"
+echo ✅ Staged
+
 REM ── 3. Build Tauri ────────────────────────────────────────────
-echo [3/5] Building Tauri application...
+echo [3/6] Building Tauri application...
 cargo tauri build --target x86_64-pc-windows-msvc --bundles msi,nsis
 if errorlevel 1 (
     echo ❌ Build failed!
-    exit /b 1
+    goto :cleanup
 )
 echo ✅ Build successful
 
-REM ── 4. Copier le runtime à côté de l'exécutable ───────────────
-echo [4/5] Copying runtime to output dir...
+REM ── 4. Copier python-embed vers output dir (dev local) ─────────
+echo [4/6] Copying python-embed to output dir...
 set "OUTDIR=target\x86_64-pc-windows-msvc\release"
 if exist "%OUTDIR%\python-embed" rmdir /s /q "%OUTDIR%\python-embed" 2>nul
-if exist "%OUTDIR%\backend" rmdir /s /q "%OUTDIR%\backend" 2>nul
-if exist "%OUTDIR%\frontend" rmdir /s /q "%OUTDIR%\frontend" 2>nul
 xcopy /E /I /Q /Y "python-embed" "%OUTDIR%\python-embed"
-xcopy /E /I /Q /Y "..\backend" "%OUTDIR%\backend"
-xcopy /E /I /Q /Y "..\frontend" "%OUTDIR%\frontend"
-
-REM Add parent directory to Python path so 'import backend' works at runtime
 echo ..>> "%OUTDIR%\python-embed\python311._pth"
-echo ✅ Runtime + frontend copied + sys.path fixed
+echo ✅ Dev runtime ready
 
-REM ── 5. Résultats ───────────────────────────────────────────────
-echo [5/5] Results:
+:cleanup
+REM ── 5. Nettoyer les dossiers stagés ───────────────────────────
+echo [5/6] Cleaning up staged dirs...
+if exist "backend" rmdir /s /q "backend"
+if exist "frontend" rmdir /s /q "frontend"
+echo ✅ Cleaned
+
+REM ── 6. Résultats ───────────────────────────────────────────────
+echo [6/6] Results:
 dir /b "%OUTDIR%\bundle\msi\*.msi" 2>nul
 dir /b "%OUTDIR%\bundle\nsis\*.exe" 2>nul
 echo.
diff --git a/desktop/tauri.conf.json b/desktop/tauri.conf.json
index b8bf978..77ef9a3 100644
--- a/desktop/tauri.conf.json
+++ b/desktop/tauri.conf.json
@@ -42,8 +42,8 @@
     ],
     "resources": [
       "python-embed/**/*",
-      "../backend/**/*",
-      "../frontend/**/*"
+      "backend/**/*",
+      "frontend/**/*"
     ],
     "fileAssociations": [
       {