diff --git a/src/Backend.php b/src/Backend.php
index 47882a0..3a7432a 100644
--- a/src/Backend.php
+++ b/src/Backend.php
@@ -15,26 +15,18 @@ declare(strict_types=1);
 namespace Dotclear\Plugin\lunarPhase;
 
 use dcCore;
-use dcNsProcess;
-use Dotclear\Helper\Html\Form\{
-    Checkbox,
-    Input,
-    Label,
-    Para
-};
+use Dotclear\Core\Process;
 
-class Backend extends dcNsProcess
+class Backend extends Process
 {
     public static function init(): bool
     {
-        static::$init = defined('DC_CONTEXT_ADMIN');
-
-        return static::$init;
+        return self::status(My::checkContext(My::BACKEND));
     }
 
     public static function process(): bool
     {
-        if (!static::$init) {
+        if (!self::status()) {
             return false;
         }
 
diff --git a/src/Frontend.php b/src/Frontend.php
index 2ed3f37..88dfc22 100644
--- a/src/Frontend.php
+++ b/src/Frontend.php
@@ -15,21 +15,19 @@ declare(strict_types=1);
 namespace Dotclear\Plugin\lunarPhase;
 
 use dcCore;
-use dcNsProcess;
 use dcUtils;
+use Dotclear\Core\Process;
 
-class Frontend extends dcNsProcess
+class Frontend extends Process
 {
     public static function init(): bool
     {
-        static::$init = defined('DC_RC_PATH');
-
-        return static::$init;
+        return self::status(My::checkContext(My::FRONTEND));
     }
 
     public static function process(): bool
     {
-        if (!static::$init) {
+        if (!self::status()) {
             return false;
         }
 
diff --git a/src/My.php b/src/My.php
index 62c80f4..0dc5852 100644
--- a/src/My.php
+++ b/src/My.php
@@ -14,12 +14,12 @@ declare(strict_types=1);
 
 namespace Dotclear\Plugin\lunarPhase;
 
-use dcCore;
+use Dotclear\Module\MyPlugin;
 
 /**
  * This module definitions.
  */
-class My
+class My extends MyPlugin
 {
     /** @var    array<string,string>    List of lunar phase => image */
     public const LUNAR_PHASES = [
@@ -32,30 +32,4 @@ class My
         'last_quarter_moon'    => 'tqm.png',
         'waning_crescent_moon' => 'wcm2.png',
     ];
-
-    /**
-     * This module id.
-     */
-    public static function id(): string
-    {
-        return basename(dirname(__DIR__));
-    }
-
-    /**
-     * This module name.
-     */
-    public static function name(): string
-    {
-        $name = dcCore::app()->plugins->moduleInfo(self::id(), 'name');
-
-        return __(is_string($name) ? $name : self::id());
-    }
-
-    /**
-     * This module path.
-     */
-    public static function path(): string
-    {
-        return dirname(__DIR__);
-    }
 }
diff --git a/src/Prepend.php b/src/Prepend.php
index 89c69fa..2c8186b 100644
--- a/src/Prepend.php
+++ b/src/Prepend.php
@@ -15,20 +15,18 @@ declare(strict_types=1);
 namespace Dotclear\Plugin\lunarPhase;
 
 use dcCore;
-use dcNsProcess;
+use Dotclear\Core\Process;
 
-class Prepend extends dcNsProcess
+class Prepend extends Process
 {
     public static function init(): bool
     {
-        static::$init = defined('DC_RC_PATH');
-
-        return static::$init;
+        return self::status(My::checkContext(My::PREPEND));
     }
 
     public static function process(): bool
     {
-        if (!static::$init) {
+        if (!self::status()) {
             return false;
         }
 
@@ -38,11 +36,6 @@ class Prepend extends dcNsProcess
             'lunarphase.css',
             '^lunarphase\.css',
             function (?string $args): void {
-                // avoid null warning
-                if (is_null(dcCore::app()->blog)) {
-                    return;
-                }
-
                 header('Content-Type: text/css; charset=UTF-8');
                 echo "/* lunarphase widget style */\n";
 
@@ -50,7 +43,7 @@ class Prepend extends dcNsProcess
                     echo sprintf(
                         "#sidebar .lunarphase ul li.%s{background:transparent url(%s) no-repeat left 0.2em;padding-left:2em;}\n",
                         $phase,
-                        dcCore::app()->blog->getPF(My::id() . '/img/' . $image)
+                        My::fileURL('img/' . $image)
                     );
                 }