Directories project has a 2 ways to manage categories.

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From Seeder Files

For initial setup, you can add categories in database/seeders/CategorySeeder.php file and run the seeder to add them to the database. If you already run php artisan migrate --seed command, you can manage categories from the admin panel. If you want to refresh the categories, you can run php artisan migrate:fresh --seed
This command will reset the database and add the categories from the seeder file.
database/seeders/CategorySeeder.php
<?php
...
class CategorySeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        $categories = [
            ['icon' => '🤖', 'title' => 'Artificial intelligence'],
            ['icon' => '📈', 'title' => 'Productivity'],
            ['icon' => '📣', 'title' => 'Marketing'],
            ['icon' => '💻', 'title' => 'Developer tools'],
            ['icon' => '🎨', 'title' => 'Design'],
            ['icon' => '🔍', 'title' => 'SEO'],
            ...
        ];

        foreach ($categories as $category) {
            \App\Models\Category::create($category);
        }
    }
}

​
From Admin Panel

In the admin panel /admin/categories you can manage categories. You can add, edit, delete, and add new categories from the admin panel.