forge/database/seeders/DatabaseSeeder.php

<?php

namespace Database\Seeders;

use App\Models\License;
use App\Models\Mod;
use App\Models\ModVersion;
use App\Models\SptVersion;
use App\Models\User;
use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
    /**
     * Seed the application's database.
     */
    public function run(): void
    {
        // Create a few SPT versions.
        $spt_versions = SptVersion::factory(10)->create();

        // Create some code licenses.
        $licenses = License::factory(10)->create();

        // Add 100 users.
        $users = User::factory(100)->create();

        // Add 200 mods, assigning them to the users we just created.
        $mods = Mod::factory(200)->recycle([$users, $licenses])->create();

        // Add 1000 mod versions, assigning them to the mods we just created.
        ModVersion::factory(1000)->recycle([$mods, $spt_versions])->create();
    }
}