some progress

app/Models/User.php

@@ -45,4 +45,20 @@ class User extends Authenticatable
             'password' => 'hashed',
         ];
     }
+
+    /**
+     * Books saved by the user in their readlist.
+     */
+    public function readlistBooks()
+    {
+        return $this->belongsToMany(Book::class, 'readlist_items')->withTimestamps();
+    }
+
+    /**
+     * Reviews authored by the user.
+     */
+    public function reviews()
+    {
+        return $this->hasMany(SummaryReview::class);
+    }
 }