switch nixpkgs version

src/main.cpp

@@ -2,6 +2,11 @@
 #include "App.h"
 
 int main(int argc, char* argv[]) {
+
+    if(!glfwInit()) {
+        std::cout << "Still no glfw!\n";
+        std::abort();
+    }
     App app(argc, argv);
     app.run();
 }