diff --git a/src/System/Integrate/Application.php b/src/System/Integrate/Application.php
index f9b4d4f8..2ebf58b6 100644
--- a/src/System/Integrate/Application.php
+++ b/src/System/Integrate/Application.php
@@ -205,14 +205,12 @@ public function __construct(string $base_path)
     {
         parent::__construct();
 
-        // base binding
-        static::$app = $this;
-        $this->set('app', $this);
-        $this->set(Application::class, $this);
-        $this->set(Container::class, $this);
+        // set base path
+        $this->setBasePath($base_path);
+        $this->setConfigPath($_ENV['CONFIG_PATH'] ?? DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR);
 
-        // load config and load provider
-        $this->loadConfig($base_path);
+        // base binding
+        $this->setBaseBinding();
 
         // register base provider
         $this->register(IntegrateServiceProvider::class);
@@ -231,43 +229,29 @@ public static function getIntance()
         return static::$app;
     }
 
+    /**
+     * Register base binding container.
+     */
+    protected function setBaseBinding(): void
+    {
+        static::$app = $this;
+        $this->set('app', $this);
+        $this->set(Application::class, $this);
+        $this->set(Container::class, $this);
+    }
+
     /**
      * Load and set Configuration to application.
-     *
-     * @param string $base_path Base path
-     *
-     * @return void
      */
-    public function loadConfig(string $base_path)
+    public function loadConfig(ConfigRepository $configs): void
     {
-        // set base path
-        $this->setBasePath($base_path);
-        $this->setAppPath($base_path);
-        $config_path = $base_path . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR;
-
-        // check file exis
-        $configs = $this->defaultConfigs();
-        $paths   = [
-            'app.config.php',
-            'database.config.php',
-            'pusher.config.php',
-            'cachedriver.config.php',
-            'view.config.php',
-        ];
-        foreach ($paths as $path) {
-            $file_path = $config_path . $path;
-
-            if (file_exists($file_path)) {
-                $config     = include $file_path;
-                foreach ($config as $key => $value) {
-                    $configs[$key] = $value;
-                }
-            }
-        }
+        // give access to get config directly
+        $this->set('config', fn (): ConfigRepository => $configs);
 
         // base env
         $this->set('environment', $configs['ENVIRONMENT']);
         // application path
+        $this->setAppPath($this->basePath());
         $this->setModelPath($configs['MODEL_PATH']);
         $this->setViewPath($configs['VIEW_PATH']);
         $this->setViewPaths($configs['VIEW_PATHS']);
@@ -277,7 +261,6 @@ public function loadConfig(string $base_path)
         $this->setCommandPath($configs['COMMAND_PATH']);
         $this->setCachePath($configs['CACHE_PATH']);
         $this->setCompiledViewPath($configs['COMPILED_VIEW_PATH']);
-        $this->setConfigPath($configs['CONFIG']);
         $this->setMiddlewarePath($configs['MIDDLEWARE']);
         $this->setProviderPath($configs['SERVICE_PROVIDER']);
         $this->setMigrationPath($configs['MIGRATION_PATH']);
@@ -292,9 +275,7 @@ public function loadConfig(string $base_path)
         $this->set('config.view.extensions', $configs['VIEW_EXTENSIONS']);
         // load provider
         $this->providers = $configs['PROVIDERS'];
-        $this->defineder($configs);
-        // give access to get config directly
-        $this->set('config', $configs);
+        $this->defineder($configs->toArray());
     }
 
     /**
@@ -302,7 +283,7 @@ public function loadConfig(string $base_path)
      *
      * @return array<string, mixed> Configs
      */
-    private function defaultConfigs()
+    public function defaultConfigs()
     {
         return [
             // app config
@@ -660,6 +641,17 @@ public function appPath()
         return $this->get('path.app');
     }
 
+    /**
+     * Get application (bootstrapper) cach path.
+     * default './boostrap/cache/'.
+     *
+     * @return string
+     */
+    public function getApplicationCachePath()
+    {
+        return $this->basePath() . 'bootsrap' . DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR;
+    }
+
     /**
      * Get model path.
      *
@@ -1086,6 +1078,7 @@ protected function registerAlias(): void
             'request'       => [Request::class],
             'view.instance' => [Templator::class],
             'vite.gets'     => [Vite::class],
+            'config'        => [ConfigRepository::class],
         ] as $abstrack => $aliases) {
             foreach ($aliases as $alias) {
                 $this->alias($abstrack, $alias);
diff --git a/src/System/Integrate/Bootstrap/ConfigProviders.php b/src/System/Integrate/Bootstrap/ConfigProviders.php
new file mode 100644
index 00000000..e3be35ff
--- /dev/null
+++ b/src/System/Integrate/Bootstrap/ConfigProviders.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace System\Integrate\Bootstrap;
+
+use System\Integrate\Application;
+use System\Integrate\ConfigRepository;
+
+class ConfigProviders
+{
+    public function bootstrap(Application $app): void
+    {
+        $config_path = $app->configPath();
+        $config      =  $app->defaultConfigs();
+        $has_cache   = false;
+        if (file_exists($file = $app->getApplicationCachePath() . 'config.php')) {
+            $config    = array_merge($config, require $file);
+            $has_cache = true;
+        }
+
+        if (false === $has_cache) {
+            foreach (glob("{$config_path}*.config.php") as $path) {
+                foreach (include $path as $key => $value) {
+                    $config[$key] = $value;
+                }
+            }
+        }
+
+        $app->loadConfig(new ConfigRepository($config));
+    }
+}
diff --git a/src/System/Integrate/ConfigRepository.php b/src/System/Integrate/ConfigRepository.php
new file mode 100644
index 00000000..8479c59c
--- /dev/null
+++ b/src/System/Integrate/ConfigRepository.php
@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+namespace System\Integrate;
+
+/**
+ * @implements \ArrayAccess<string, mixed>
+ */
+class ConfigRepository implements \ArrayAccess
+{
+    /**
+     * Create new config using array.
+     *
+     * @param array<string, mixed> $config
+     */
+    public function __construct(protected $config = [])
+    {
+    }
+
+    /**
+     * Checks if the given key or index exists in the config.
+     */
+    public function has(string $key): bool
+    {
+        return array_key_exists($key, $this->config);
+    }
+
+    /**
+     * Get config.
+     */
+    public function get(string $key, mixed $default = null): mixed
+    {
+        return $this->config[$key] ?? $default;
+    }
+
+    /**
+     * Set new or create config.
+     */
+    public function set(string $key, mixed $value): void
+    {
+        $this->config[$key] = $value;
+    }
+
+    /**
+     * Convert back to array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(): array
+    {
+        return $this->config;
+    }
+
+    // array access
+
+    /**
+     * Checks if the given key or index exists in the config.
+     */
+    public function offsetExists(mixed $offset): bool
+    {
+        return $this->has($offset);
+    }
+
+    /**
+     * Get config.
+     */
+    public function offsetGet(mixed $offset): mixed
+    {
+        return $this->get($offset);
+    }
+
+    /**
+     * Set new or create config.
+     */
+    public function offsetSet(mixed $offset, mixed $value): void
+    {
+        $this->set($offset, $value);
+    }
+
+    /**
+     * Unset or set to null.
+     */
+    public function offsetUnset(mixed $offset): void
+    {
+        $this->set($offset, null);
+    }
+}
diff --git a/src/System/Integrate/Console/Karnel.php b/src/System/Integrate/Console/Karnel.php
index 3dfcda85..7d5cd3e9 100644
--- a/src/System/Integrate/Console/Karnel.php
+++ b/src/System/Integrate/Console/Karnel.php
@@ -7,6 +7,7 @@
 use System\Console\Style\Style;
 use System\Integrate\Application;
 use System\Integrate\Bootstrap\BootProviders;
+use System\Integrate\Bootstrap\ConfigProviders;
 use System\Integrate\Bootstrap\RegisterProviders;
 
 class Karnel
@@ -21,6 +22,7 @@ class Karnel
 
     /** @var array<int, class-string> Apllication bootstrap register. */
     protected array $bootstrappers = [
+        ConfigProviders::class,
         RegisterProviders::class,
         BootProviders::class,
     ];
diff --git a/src/System/Integrate/Http/Karnel.php b/src/System/Integrate/Http/Karnel.php
index f3818ba9..6d7e60bf 100644
--- a/src/System/Integrate/Http/Karnel.php
+++ b/src/System/Integrate/Http/Karnel.php
@@ -8,6 +8,7 @@
 use System\Http\Response;
 use System\Integrate\Application;
 use System\Integrate\Bootstrap\BootProviders;
+use System\Integrate\Bootstrap\ConfigProviders;
 use System\Integrate\Bootstrap\RegisterProviders;
 use System\Integrate\Exceptions\Handler;
 use System\Integrate\Http\Middleware\MaintenanceMiddleware;
@@ -30,6 +31,7 @@ class Karnel
 
     /** @var array<int, class-string> Apllication bootstrap register. */
     protected array $bootstrappers = [
+        ConfigProviders::class,
         RegisterProviders::class,
         BootProviders::class,
     ];
diff --git a/tests/Integrate/ApplicationTest.php b/tests/Integrate/ApplicationTest.php
index 4e68739e..28befb37 100644
--- a/tests/Integrate/ApplicationTest.php
+++ b/tests/Integrate/ApplicationTest.php
@@ -3,6 +3,7 @@
 use PHPUnit\Framework\TestCase;
 use System\Http\Request;
 use System\Integrate\Application;
+use System\Integrate\ConfigRepository;
 use System\Integrate\Exceptions\ApplicationNotAvailable;
 use System\Integrate\Http\Exception\HttpException;
 
@@ -38,13 +39,15 @@ public function itCanLoadApp()
     }
 
     /** @test */
-    public function itCanLoadDefaultConfig()
+    public function itCanLoadConfigFromDefault()
     {
         $app = new Application('/');
 
+        $app->loadConfig(new ConfigRepository($app->defaultConfigs()));
+        /** @var Config */
         $config = $app->get('config');
 
-        $this->assertEquals($this->defaultConfigs(), $config);
+        $this->assertEquals($this->defaultConfigs(), $config->toArray());
 
         $app->flush();
     }
@@ -106,6 +109,7 @@ public function itCanTerminateAfterApplicationDone()
     public function itCanDetectMaintenenceMode()
     {
         $app = new Application(__DIR__);
+        $app->loadConfig(new ConfigRepository($app->defaultConfigs()));
 
         $this->assertFalse($app->isDownMaintenanceMode());
 
@@ -138,6 +142,7 @@ public function itCanGetDownDefault()
     {
         $app = new Application('/');
 
+        $app->loadConfig(new ConfigRepository($app->defaultConfigs()));
         $this->assertEquals([
             'redirect' => null,
             'retry'    => null,
@@ -214,6 +219,7 @@ public function itCanAddCallImediatllyIfApplicationAlredyBooted()
     public function itCanCallDeprecatedMethod()
     {
         $app = new Application(__DIR__);
+        $app->loadConfig(new ConfigRepository($app->defaultConfigs()));
 
         $this->assertEquals($app->basePath(), $app->base_path());
         $this->assertEquals($app->appPath(), $app->app_path());
diff --git a/tests/Integrate/Bootstrap/ConfigProvidersTest.php b/tests/Integrate/Bootstrap/ConfigProvidersTest.php
new file mode 100644
index 00000000..b46c39ec
--- /dev/null
+++ b/tests/Integrate/Bootstrap/ConfigProvidersTest.php
@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+namespace System\Integrate\Bootstrap;
+
+use PHPUnit\Framework\TestCase;
+use System\Integrate\Application;
+
+class ConfigProvidersTest extends TestCase
+{
+    /**
+     * @test
+     */
+    public function itCanLoadConfigFromDefault()
+    {
+        $app = new Application(__DIR__);
+
+        (new ConfigProviders())->bootstrap($app);
+        /** @var Config */
+        $config = $app->get('config');
+
+        $this->assertEquals('dev', $config->get('ENVIRONMENT'));
+
+        $app->flush();
+    }
+
+    /**
+     * @test
+     */
+    public function itCanLoadConfigFromFile()
+    {
+        $app = new Application(dirname(__DIR__));
+
+        $app->setConfigPath(DIRECTORY_SEPARATOR . 'assets' . DIRECTORY_SEPARATOR . 'Config' . DIRECTORY_SEPARATOR);
+        (new ConfigProviders())->bootstrap($app);
+        /** @var Config */
+        $config = $app->get('config');
+
+        $this->assertEquals('test', $config->get('ENVIRONMENT'));
+
+        $app->flush();
+    }
+
+    /**
+     * Assume this test is boostrappe application.
+     *
+     * @test
+     */
+    public function itCanLoadConfigFromCache()
+    {
+        $app = new Application(__DIR__ . DIRECTORY_SEPARATOR);
+
+        $app->setConfigPath(DIRECTORY_SEPARATOR . 'assets' . DIRECTORY_SEPARATOR . 'Config' . DIRECTORY_SEPARATOR);
+        (new ConfigProviders())->bootstrap($app);
+        /** @var Config */
+        $config = $app->get('config');
+
+        $this->assertEquals('prod', $config->get('ENVIRONMENT'));
+
+        $app->flush();
+    }
+}
diff --git a/tests/Integrate/Bootstrap/bootsrap/cache/config.php b/tests/Integrate/Bootstrap/bootsrap/cache/config.php
new file mode 100644
index 00000000..10d726ba
--- /dev/null
+++ b/tests/Integrate/Bootstrap/bootsrap/cache/config.php
@@ -0,0 +1,61 @@
+<?php
+
+return [
+    // app config
+    'BASEURL'               => '/',
+    'time_zone'             => 'Asia/Jakarta',
+    'APP_KEY'               => '',
+    'ENVIRONMENT'           => 'prod',
+
+    'COMMAND_PATH'          => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Commands' . DIRECTORY_SEPARATOR,
+    'CONTROLLER_PATH'       => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Controllers' . DIRECTORY_SEPARATOR,
+    'MODEL_PATH'            => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Models' . DIRECTORY_SEPARATOR,
+    'MIDDLEWARE'            => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Middlewares' . DIRECTORY_SEPARATOR,
+    'SERVICE_PROVIDER'      => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Providers' . DIRECTORY_SEPARATOR,
+    'CONFIG'                => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR,
+    'SERVICES_PATH'         => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'services' . DIRECTORY_SEPARATOR,
+    'VIEW_PATH'             => DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'views' . DIRECTORY_SEPARATOR,
+    'COMPONENT_PATH'        => DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'components' . DIRECTORY_SEPARATOR,
+    'STORAGE_PATH'          => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR,
+    'CACHE_PATH'            => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR,
+    'CACHE_VIEW_PATH'       => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'view' . DIRECTORY_SEPARATOR,
+    'PUBLIC_PATH'           => DIRECTORY_SEPARATOR . 'public' . DIRECTORY_SEPARATOR,
+    'MIGRATION_PATH'        => DIRECTORY_SEPARATOR . 'database' . DIRECTORY_SEPARATOR . 'migration' . DIRECTORY_SEPARATOR,
+    'SEEDER_PATH'           => DIRECTORY_SEPARATOR . 'database' . DIRECTORY_SEPARATOR . 'seeders' . DIRECTORY_SEPARATOR,
+
+    'PROVIDERS'             => [
+        // provider class name
+    ],
+
+    // db config
+    'DB_HOST'               => 'localhost',
+    'DB_USER'               => 'root',
+    'DB_PASS'               => '',
+    'DB_NAME'               => '',
+
+    // pusher
+    'PUSHER_APP_ID'         => '',
+    'PUSHER_APP_KEY'        => '',
+    'PUSHER_APP_SECRET'     => '',
+    'PUSHER_APP_CLUSTER'    => '',
+
+    // redis driver
+    'REDIS_HOST'            => '127.0.0.1',
+    'REDIS_PASS'            => '',
+    'REDIS_PORT'            => 6379,
+
+    // memcahe
+    'MEMCACHED_HOST'        => '127.0.0.1',
+    'MEMCACHED_PASS'        => '',
+    'MEMCACHED_PORT'        => 6379,
+
+    // view config
+    'VIEW_PATHS' => [
+        DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'views' . DIRECTORY_SEPARATOR,
+    ],
+    'VIEW_EXTENSIONS' => [
+        '.template.php',
+        '.php',
+    ],
+    'COMPILED_VIEW_PATH' => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'view' . DIRECTORY_SEPARATOR,
+];
diff --git a/tests/Integrate/Commands/ViewCommandsTest.php b/tests/Integrate/Commands/ViewCommandsTest.php
index f9fc9684..105a2aab 100644
--- a/tests/Integrate/Commands/ViewCommandsTest.php
+++ b/tests/Integrate/Commands/ViewCommandsTest.php
@@ -6,6 +6,7 @@
 
 use PHPUnit\Framework\TestCase;
 use System\Integrate\Application;
+use System\Integrate\ConfigRepository;
 use System\Integrate\Console\ViewCommand;
 use System\View\Templator;
 use System\View\TemplatorFinder;
@@ -49,7 +50,9 @@ public function itCanCompileFromTemplatorFiles(): void
     public function itCanClearCompiledViewFile(): void
     {
         // tests\Integrate\Commands\assets\view_cache
-        (new Application(''))->setCachePath(__DIR__ . DIRECTORY_SEPARATOR . 'assets' . DIRECTORY_SEPARATOR . 'view_cache' . DIRECTORY_SEPARATOR);
+        $app = new Application('');
+        $app->loadConfig(new ConfigRepository($app->defaultConfigs()));
+        $app->setCachePath(__DIR__ . DIRECTORY_SEPARATOR . 'assets' . DIRECTORY_SEPARATOR . 'view_cache' . DIRECTORY_SEPARATOR);
 
         file_put_contents(cache_path() . 'test01.php', '');
         file_put_contents(cache_path() . 'test02.php', '');
diff --git a/tests/Integrate/ConfigRepositoryTest.php b/tests/Integrate/ConfigRepositoryTest.php
new file mode 100644
index 00000000..9d1fab98
--- /dev/null
+++ b/tests/Integrate/ConfigRepositoryTest.php
@@ -0,0 +1,49 @@
+<?php
+
+use PHPUnit\Framework\TestCase;
+use System\Integrate\ConfigRepository;
+
+class ConfigRepositoryTest extends TestCase
+{
+    /** @test */
+    public function itCanPerformRepository()
+    {
+        $env = [
+            'envi'  => 'test',
+            'num'   => 1,
+            'allow' => true,
+        ];
+
+        $config = new ConfigRepository($env);
+        // get
+        $this->assertEquals('test', $config->get('envi', 'local'));
+        // set
+        $config->set('envi', 'local');
+        $this->assertEquals('local', (fn () => $this->{'config'}['envi'])->call($config));
+        // has
+        $this->assertTrue($config->has('num'));
+    }
+
+    /** @test */
+    public function itCanPerformRepositoryUsingArrayAccess()
+    {
+        $env = [
+            'envi'  => 'test',
+            'num'   => 1,
+            'allow' => true,
+        ];
+
+        $config = new ConfigRepository($env);
+
+        // get
+        $this->assertEquals('test', $config['envi']);
+        // set
+        $config['envi'] = 'local';
+        $this->assertEquals('local', (fn () => $this->{'config'}['envi'])->call($config));
+        // has
+        $this->assertTrue(isset($config['num']));
+        // unset
+        unset($config['allow']);
+        $this->assertNull((fn () => $this->{'config'}['allow'])->call($config));
+    }
+}
diff --git a/tests/Integrate/Exceptions/HandlerTest.php b/tests/Integrate/Exceptions/HandlerTest.php
index 1e559036..292f00e4 100644
--- a/tests/Integrate/Exceptions/HandlerTest.php
+++ b/tests/Integrate/Exceptions/HandlerTest.php
@@ -104,7 +104,10 @@ public function itCanReportException()
     /** @test */
     public function itCanRenderJson()
     {
-        $this->app->set('environment', 'prod');
+        $this->app->bootedCallback(function () {
+            $this->app->set('environment', 'prod');
+        });
+
         $karnel      = $this->app->make(Karnel::class);
         $response    = $karnel->handle(new Request('/test', [], [], [], [], [], [
             'content-type' => 'application/json',
diff --git a/tests/Integrate/Http/Middleware/PreventRequestInMaintenanceTest.php b/tests/Integrate/Http/Middleware/PreventRequestInMaintenanceTest.php
index dbd54846..1058c534 100644
--- a/tests/Integrate/Http/Middleware/PreventRequestInMaintenanceTest.php
+++ b/tests/Integrate/Http/Middleware/PreventRequestInMaintenanceTest.php
@@ -8,6 +8,7 @@
 use System\Http\Request;
 use System\Http\Response;
 use System\Integrate\Application;
+use System\Integrate\ConfigRepository;
 use System\Integrate\Http\Exception\HttpException;
 use System\Integrate\Http\Middleware\MaintenanceMiddleware;
 
@@ -19,6 +20,7 @@ final class PreventRequestInMaintenanceTest extends TestCase
     public function itCanPreventRequestDuringMaintenance()
     {
         $app        = new Application(__DIR__);
+        $app->loadConfig(new ConfigRepository($app->defaultConfigs()));
         $middleware = new MaintenanceMiddleware($app);
         $response   = new Response('test');
         $handle     = $middleware->handle(new Request('/'), fn (Request $request) => $response);
diff --git a/tests/Integrate/assets/Config/app.config.php b/tests/Integrate/assets/Config/app.config.php
new file mode 100644
index 00000000..f47bb74f
--- /dev/null
+++ b/tests/Integrate/assets/Config/app.config.php
@@ -0,0 +1,61 @@
+<?php
+
+return [
+    // app config
+    'BASEURL'               => '/',
+    'time_zone'             => 'Asia/Jakarta',
+    'APP_KEY'               => '',
+    'ENVIRONMENT'           => 'test',
+
+    'COMMAND_PATH'          => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Commands' . DIRECTORY_SEPARATOR,
+    'CONTROLLER_PATH'       => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Controllers' . DIRECTORY_SEPARATOR,
+    'MODEL_PATH'            => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Models' . DIRECTORY_SEPARATOR,
+    'MIDDLEWARE'            => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Middlewares' . DIRECTORY_SEPARATOR,
+    'SERVICE_PROVIDER'      => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'Providers' . DIRECTORY_SEPARATOR,
+    'CONFIG'                => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR,
+    'SERVICES_PATH'         => DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'services' . DIRECTORY_SEPARATOR,
+    'VIEW_PATH'             => DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'views' . DIRECTORY_SEPARATOR,
+    'COMPONENT_PATH'        => DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'components' . DIRECTORY_SEPARATOR,
+    'STORAGE_PATH'          => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR,
+    'CACHE_PATH'            => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR,
+    'CACHE_VIEW_PATH'       => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'view' . DIRECTORY_SEPARATOR,
+    'PUBLIC_PATH'           => DIRECTORY_SEPARATOR . 'public' . DIRECTORY_SEPARATOR,
+    'MIGRATION_PATH'        => DIRECTORY_SEPARATOR . 'database' . DIRECTORY_SEPARATOR . 'migration' . DIRECTORY_SEPARATOR,
+    'SEEDER_PATH'           => DIRECTORY_SEPARATOR . 'database' . DIRECTORY_SEPARATOR . 'seeders' . DIRECTORY_SEPARATOR,
+
+    'PROVIDERS'             => [
+        // provider class name
+    ],
+
+    // db config
+    'DB_HOST'               => 'localhost',
+    'DB_USER'               => 'root',
+    'DB_PASS'               => '',
+    'DB_NAME'               => '',
+
+    // pusher
+    'PUSHER_APP_ID'         => '',
+    'PUSHER_APP_KEY'        => '',
+    'PUSHER_APP_SECRET'     => '',
+    'PUSHER_APP_CLUSTER'    => '',
+
+    // redis driver
+    'REDIS_HOST'            => '127.0.0.1',
+    'REDIS_PASS'            => '',
+    'REDIS_PORT'            => 6379,
+
+    // memcahe
+    'MEMCACHED_HOST'        => '127.0.0.1',
+    'MEMCACHED_PASS'        => '',
+    'MEMCACHED_PORT'        => 6379,
+
+    // view config
+    'VIEW_PATHS' => [
+        DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'views' . DIRECTORY_SEPARATOR,
+    ],
+    'VIEW_EXTENSIONS' => [
+        '.template.php',
+        '.php',
+    ],
+    'COMPILED_VIEW_PATH' => DIRECTORY_SEPARATOR . 'storage' . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . 'view' . DIRECTORY_SEPARATOR,
+];