Ideas/app/Http/Controllers/DashboardController.php

<?php

namespace App\Http\Controllers;

use App\Models\Idea;
use Illuminate\Http\Request;

class DashboardController extends Controller
{
    public function index()
    {
        $idea = new Idea(['content' => "youtube"]);
        $idea->save();

        return view('dashboard', ['ideas' => Idea::orderBy("created_at", "DESC")->get()]);
    }
}