Is There a Contingency in God?

Is motal collapse entailed by any necessarily existing foundation of reality? How does contingency derive from necessity? I just wante to say no, because god has necessary features, god also has contingent features. If god has free will, he necessarily has free will but that's a power that he could exercise in lots of diferent, contingent ways. And i think god's libertarian free will gives him the ability to create contingent realities that do not flow sarily from his nature.