diff --git a/app.py b/app.py
index b703f78..c5af0e9 100644
--- a/app.py
+++ b/app.py
@@ -11,6 +11,8 @@ from config import Config
 app = Flask(__name__)
 app.config.from_object(Config)
 SYSTEM_PASSWORD = app.config.get('SYSTEM_PASSWORD', 'changeme')
+DEFAULT_ADMIN_USERNAME = app.config.get('DEFAULT_ADMIN_USERNAME', 'admin')
+DEFAULT_ADMIN_PASSWORD = app.config.get('DEFAULT_ADMIN_PASSWORD', 'admin123')
 
 db = SQLAlchemy(app)
 socketio = SocketIO(app)
@@ -52,14 +54,21 @@ def require_system_password():
 
 @app.route('/system-auth', methods=['GET', 'POST'])
 def system_auth():
+    DEFAULT_ADMIN_USERNAME = app.config.get('DEFAULT_ADMIN_USERNAME', 'admin')
+    DEFAULT_ADMIN_PASSWORD = app.config.get('DEFAULT_ADMIN_PASSWORD', 'admin123')
+
     if request.method == 'POST':
         if request.form['password'] == SYSTEM_PASSWORD:
             db.create_all()
             if not User.query.filter_by(is_admin=True).first():
-                admin_user = User(username='admin', password_hash=generate_password_hash('admin123'), is_admin=True)
+                admin_user = User(
+                    username=DEFAULT_ADMIN_USERNAME,
+                    password_hash=generate_password_hash(DEFAULT_ADMIN_PASSWORD),
+                    is_admin=True
+                )
                 db.session.add(admin_user)
                 db.session.commit()
-                flash('Utworzono konto administratora: login=admin, hasło=admin123')
+                flash(f'Utworzono konto administratora: login={DEFAULT_ADMIN_USERNAME}, hasło={DEFAULT_ADMIN_PASSWORD}')
             resp = redirect(url_for('index_guest'))
             resp.set_cookie('authorized', 'true')
             return resp