Grouping Rows with Closure/Tree relation

Schema::create('products', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->unsignedInteger('parent_product_id')->nullable();  //foreign key to self
        });

Schema::create('products_closure', function (Blueprint $table) {
            $table->unsignedInteger('ancestor');
            $table->unsignedInteger('descendant');
            $table->unsignedTinyInteger('distance');
            $table->primary(['ancestor', 'descendant']);
        });

Group::make('name')
                    ->getTitleFromRecordUsing(fn (Product $record) => $record->getRoot()->name ?? $record->name)
                    ->getKeyFromRecordUsing(fn (Product $record) => $record->getRoot()->id ?? $record->id)