diff --git a/launcher/app/assets/js/processbuilder.js b/launcher/app/assets/js/processbuilder.js
index 79a0225..48da80e 100644
--- a/launcher/app/assets/js/processbuilder.js
+++ b/launcher/app/assets/js/processbuilder.js
@@ -13,17 +13,20 @@ const ConfigManager            = require('./configmanager')
 const logger = LoggerUtil.getLogger('ProcessBuilder')
 
 /**
- * SurviePote : dossiers système contenant libGL/libEGL/libvulkan (dispatch + drivers).
- * Nécessaire là où dlopen ne les voit pas (ex: NixOS hors wrapper, LD_LIBRARY_PATH vide).
+ * SurviePote : dossiers système contenant les libs natives dlopen par le jeu
+ * (libGL/libEGL/libvulkan + drivers Mesa, et backends audio libasound/libpulse/libpipewire).
+ * Nécessaires là où dlopen ne les voit pas (ex: NixOS hors wrapper, LD_LIBRARY_PATH vide).
+ * Sans ça : "[LWJGL] libGL.so.1 not found in system paths" ou "Failed to open OpenAL device".
  * Ne retourne que des dossiers existants. Ordre : dispatch d'abord, drivers ensuite.
  *
  * @returns {Array.<string>} Dossiers à ajouter à LD_LIBRARY_PATH pour le jeu.
  */
-function resolveSystemGLDirs(){
+function resolveSystemNativeDirs(){
     const dirs = []
     const candidates = [
         '/run/opengl-driver/lib',
         '/run/opengl-driver-32/lib',
+        '/run/current-system/sw/lib',
         '/usr/lib/x86_64-linux-gnu',
         '/usr/lib64',
         '/usr/lib'
@@ -35,11 +38,13 @@ function resolveSystemGLDirs(){
             }
         } catch(_err) { /* ignore */ }
     }
-    // NixOS : libglvnd (dispatch libGL/libEGL) + vulkan-loader dans le store.
+    // NixOS : libglvnd (dispatch GL), vulkan-loader, alsa/pulse/pipewire dans le store.
     try {
         const store = fs.readdirSync('/nix/store')
         for(const entry of store){
-            if(entry.includes('libglvnd') || entry.includes('vulkan-loader')){
+            if(entry.includes('libglvnd') || entry.includes('vulkan-loader')
+                || entry.includes('alsa-lib') || entry.includes('pulseaudio')
+                || (entry.includes('pipewire') && !entry.includes('python'))){
                 const lib = path.join('/nix/store', entry, 'lib')
                 if(fs.existsSync(lib) && !dirs.includes(lib)){
                     dirs.push(lib)
@@ -50,6 +55,27 @@ function resolveSystemGLDirs(){
     return dirs
 }
 
+/**
+ * SurviePote : dossier des plugins SPA PipeWire (routage audio).
+ * Sans lui, OpenAL voit PipeWire mais ne peut router aucun son.
+ *
+ * @returns {string|null} Chemin spa-0.2 ou null.
+ */
+function resolveSpaPluginDir(){
+    try {
+        const store = fs.readdirSync('/nix/store')
+        for(const entry of store){
+            if(entry.includes('pipewire') && !entry.includes('python')){
+                const spa = path.join('/nix/store', entry, 'lib', 'spa-0.2')
+                if(fs.existsSync(spa)){
+                    return spa
+                }
+            }
+        }
+    } catch(_err) { /* ignore */ }
+    return null
+}
+
 
 /**
  * Only forge and fabric are top level mod loaders.
@@ -120,11 +146,18 @@ class ProcessBuilder {
         // Sans ça : "[LWJGL] libGL.so.1 not found in system paths" -> crash "no OpenGL context API".
         const gameEnv = { ...process.env }
         if(process.platform === 'linux'){
-            const glDirs = resolveSystemGLDirs()
-            if(glDirs.length > 0){
+            const nativeDirs = resolveSystemNativeDirs()
+            if(nativeDirs.length > 0){
                 const prev = gameEnv.LD_LIBRARY_PATH ? gameEnv.LD_LIBRARY_PATH + ':' : ''
-                gameEnv.LD_LIBRARY_PATH = prev + glDirs.join(':')
-                logger.info('Prepended GL driver dirs to LD_LIBRARY_PATH:', glDirs.join(':'))
+                gameEnv.LD_LIBRARY_PATH = prev + nativeDirs.join(':')
+                logger.info('Prepended system native dirs to LD_LIBRARY_PATH:', nativeDirs.join(':'))
+            }
+            if(!gameEnv.SPA_PLUGIN_DIR){
+                const spa = resolveSpaPluginDir()
+                if(spa){
+                    gameEnv.SPA_PLUGIN_DIR = spa
+                    logger.info('Set SPA_PLUGIN_DIR:', spa)
+                }
             }
         }
 
diff --git a/shell.nix b/shell.nix
index f5ebd54..4c0e61b 100644
--- a/shell.nix
+++ b/shell.nix
@@ -24,6 +24,10 @@ pkgs.mkShell {
     pango
     nspr
     nss
+    # Audio (backends OpenAL : ALSA/Pulse/PipeWire).
+    alsa-lib
+    pulseaudio
+    pipewire
     libxkbcommon
     mesa
     libX11