diff --git a/.vscode/settings.json b/.vscode/settings.json
index 55720e3..477aa6a 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,15 @@
 {
   "python.analysis.autoImportCompletions": true,
-  "python.analysis.extraPaths": [".venv/lib/python3.11/site-packages"],
+  "python.analysis.extraPaths": [".venv/lib/site-packages"],
   "python.analysis.fixAll": ["source.unusedImports"],
-  "python.languageServer": "Pylance"
+  "python.languageServer": "Pylance",
+  "mypy-type-checker.args": [
+        "--disallow-untyped-defs=True",
+        "--disallow-untyped-calls=True",
+        "--check-untyped-defs=True",
+        "--warn_return_any=True",
+        "--no-implicit-optional=True",
+        "--strict_optional=True",
+        "--ignore_missing_imports=True",
+    ]
 }
diff --git a/src/constants.py b/src/constants.py
index b0b843a..96e3d41 100644
--- a/src/constants.py
+++ b/src/constants.py
@@ -8,11 +8,12 @@ URLS = {
     "intranet": "https://la-taniere.fun/connexion/",
 }
 
+RESOURCES_MP3 = ":/assets/the-beat-of-nature.mp3"
+RESOURCES_FONT = ":/assets/fonts/Roboto-Regular.ttf"
+
 GLOW_COLOR          = QColor(255, 140, 0, 255)
 GLOW_BLUR_BASE      = 15
 GLOW_BLUR_PEAK      = 70
 GLOW_ANIM_DURATION  = 1200
 
-MP3_PATH = ":/assets/the-beat-of-nature.mp3"
-
 NO_STAFF = True
diff --git a/src/controllers/audio_controller.py b/src/controllers/audio_controller.py
index 7c2f791..7200bd8 100644
--- a/src/controllers/audio_controller.py
+++ b/src/controllers/audio_controller.py
@@ -3,7 +3,7 @@ from PySide6.QtMultimedia import QMediaPlayer, QAudioOutput
 
 from config.config_manager import ConfigManager, VOLUME_KEY
 
-from constants import MP3_PATH
+from constants import RESOURCES_MP3
 
 class AudioController:
     # Encapsule toute la logique audio : lecture, volume, mute.
@@ -20,7 +20,7 @@ class AudioController:
         self._player.setLoops(-1)
 
         # Chargement du MP3 depuis les ressources Qt
-        mp3file = QFile(MP3_PATH)
+        mp3file = QFile(RESOURCES_MP3)
         mp3file.open(QFile.ReadOnly)
         mp3data = mp3file.readAll()
         mp3file.close()
diff --git a/src/main.py b/src/main.py
index 709d543..6cda515 100644
--- a/src/main.py
+++ b/src/main.py
@@ -5,10 +5,10 @@ from PySide6.QtCore import QResource
 from PySide6.QtGui import QFontDatabase, QFont
 from PySide6.QtWidgets import QApplication
 
-import resources as resources  # noqa: F401
+import resources as resources
 
 from ui.main_window import MainWindow
-
+from constants import RESOURCES_FONT
 
 # ---------------------------------------------------------------------------
 # Bundle path resolution
@@ -27,7 +27,7 @@ QResource.registerResource(f"{bundle_dir}/resources.py")
 # ---------------------------------------------------------------------------
 
 def load_custom_font() -> str:
-    font_id = QFontDatabase.addApplicationFont(":/assets/Avocado-Cake-Demo.otf")
+    font_id = QFontDatabase.addApplicationFont(RESOURCES_FONT)
     if font_id == -1:
         raise RuntimeError("Failed to load font from resources.")
     font_families = QFontDatabase.applicationFontFamilies(font_id)