diff --git a/launcher/app/assets/js/processbuilder.js b/launcher/app/assets/js/processbuilder.js
index 948400a..79a0225 100644
--- a/launcher/app/assets/js/processbuilder.js
+++ b/launcher/app/assets/js/processbuilder.js
@@ -12,6 +12,44 @@ 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).
+ * 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(){
+    const dirs = []
+    const candidates = [
+        '/run/opengl-driver/lib',
+        '/run/opengl-driver-32/lib',
+        '/usr/lib/x86_64-linux-gnu',
+        '/usr/lib64',
+        '/usr/lib'
+    ]
+    for(const dir of candidates){
+        try {
+            if(fs.existsSync(dir) && !dirs.includes(dir)){
+                dirs.push(dir)
+            }
+        } catch(_err) { /* ignore */ }
+    }
+    // NixOS : libglvnd (dispatch libGL/libEGL) + vulkan-loader dans le store.
+    try {
+        const store = fs.readdirSync('/nix/store')
+        for(const entry of store){
+            if(entry.includes('libglvnd') || entry.includes('vulkan-loader')){
+                const lib = path.join('/nix/store', entry, 'lib')
+                if(fs.existsSync(lib) && !dirs.includes(lib)){
+                    dirs.push(lib)
+                }
+            }
+        }
+    } catch(_err) { /* pas NixOS, ignore */ }
+    return dirs
+}
+
 
 /**
  * Only forge and fabric are top level mod loaders.
@@ -77,9 +115,23 @@ class ProcessBuilder {
 
         logger.info('Launch Arguments:', loggableArgs)
 
+        // SurviePote : sur NixOS, libGL/libEGL/libvulkan (dispatch + drivers Mesa) ne sont PAS
+        // dans les chemins système vus par dlopen (LD_LIBRARY_PATH vide hors wrapper nix).
+        // 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 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(':'))
+            }
+        }
+
         const child = child_process.spawn(ConfigManager.getJavaExecutable(this.server.rawServer.id), args, {
             cwd: this.gameDir,
-            detached: ConfigManager.getLaunchDetached()
+            detached: ConfigManager.getLaunchDetached(),
+            env: gameEnv
         })
 
         if(ConfigManager.getLaunchDetached()){