Color theme for those looking to copy:

    --color-background: oklch(0.12 0 0);
    --color-foreground: oklch(0.95 0 0);
    --color-card: oklch(0.16 0 0);
    --color-primary: oklch(0.65 0.15 160);
    --color-primary-foreground: oklch(0.12 0 0);
    --color-border: oklch(0.24 0 0);
    --color-input: oklch(0.24 0 0);
    --color-muted-foreground: oklch(0.6 0 0);

@nosthas

<?php

declare(strict_types=1);

use Rector\Config\RectorConfig;
use Rector\TypeDeclaration\Rector\ArrowFunction\AddArrowFunctionReturnTypeRector;
use Rector\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictTypedCallRector;
use Rector\TypeDeclaration\Rector\ClassMethod\ReturnUnionTypeRector;
use Rector\TypeDeclaration\Rector\Closure\AddClosureVoidReturnTypeWhereNoReturnRector;
use Rector\TypeDeclaration\Rector\StmtsAwareInterface\DeclareStrictTypesRector;
use RectorLaravel\Set\LaravelSetProvider;

return RectorConfig::configure()
    ->withPaths([
        __DIR__.'/app',
        __DIR__.'/bootstrap',
        __DIR__.'/config',
        __DIR__.'/public',
        __DIR__.'/resources',
        __DIR__.'/routes',
        __DIR__.'/tests',
    ])
    ->withSkip([
        __DIR__.'/bootstrap/cache',
        __DIR__.'/storage',
        __DIR__.'/vendor',
        AddClosureVoidReturnTypeWhereNoReturnRector::class,
        ReturnTypeFromStrictTypedCallRector::class,
        ReturnUnionTypeRector::class,
        DeclareStrictTypesRector::class => [
            __DIR__.'/resources/views',
        ],
        AddArrowFunctionReturnTypeRector::class,
    ])
    ->withPhpSets()
    ->withSetProviders(LaravelSetProvider::class)
    ->withImportNames()
    ->withComposerBased(laravel: true)
    ->withPreparedSets(
        deadCode: true,
        codeQuality: true,
        typeDeclarations: true,
        privatization: true,
        earlyReturn: true,
    )
    ->withRules([
        DeclareStrictTypesRector::class,
    ]);

At 7:28 I assume you meant to remove a validation rule, however there isn't one currently in the update method. Instead you remove the update on the Idea model. Presumably this is a mistake? Great tutorial so far btw :)