Fix up auth

index.d.ts

@@ -0,0 +1,13 @@
+import NextAuth, { DefaultSession } from 'next-auth'
+
+declare module 'next-auth' {
+  /**
+   * Returned by `useSession`, `getSession` and received as a prop on the `SessionProvider` React Context
+   */
+  interface Session {
+    user: {
+      /** The user's postal address. */
+      address: string
+    } & DefaultSession['user']
+  }
+}