diff --git a/composer.json b/composer.json
index 9a9684a..3a78973 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,8 @@
   },
   "autoload": {
     "psr-4": {
-        "Seacms\\ComposerInstaller\\": "src"
+        "Seacms\\ComposerInstaller\\": "src/installer/",
+        "Seacms\\Command\\": "src/commands/"
     }
   },
   "extra": {
diff --git a/src/commands/Command.php b/src/commands/Command.php
new file mode 100644
index 0000000..fc3e633
--- /dev/null
+++ b/src/commands/Command.php
@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * SPDX-License-Identifier: EUPL-1.2
+ * Authors: see /README.md
+ */
+
+namespace Seacms\Command;
+
+use Composer\Command\BaseCommand;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Command to lauch tests from command line accross all seacms dependencies
+ */
+
+ class Command extends BaseCommand
+{
+
+    /**
+     * set name
+     */
+    protected function configure() {
+        $this->setName('seacms-test');
+
+        $this
+            // the short description shown while running "php bin/console list"
+            ->setDescription('Testing seacms from command line')
+
+            // the full command description shown when running the command with
+            // the "--help" option
+            ->setHelp("Test seacms via command line.\n".
+                "(Only if phpunit available)\n")
+            
+            ->addOption('toto', '', InputOption::VALUE_NONE, 'Display toto text')
+            ->addOption('text', 't', InputOption::VALUE_REQUIRED, 'Display the text')
+        ;
+    }
+
+    
+    /**
+     * execute the command
+     * @param InputInterface $input
+     * @param OutputInterface $output
+     * @return int
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $output->writeln('<info>Testing seacms</info>');
+
+        $totoOption = $input->getOption('toto');
+        $textOption = $input->getOption('test');
+
+        if ($totoOption){
+            $output->writeln('toto');
+        }
+        if ($textOption){
+            $output->writeln($textOption);
+        }
+        return Command::SUCCESS;
+    }
+}
\ No newline at end of file
diff --git a/src/Handler.php b/src/installer/Handler.php
similarity index 100%
rename from src/Handler.php
rename to src/installer/Handler.php
diff --git a/src/NotFoundFileException.php b/src/installer/NotFoundFileException.php
similarity index 100%
rename from src/NotFoundFileException.php
rename to src/installer/NotFoundFileException.php
diff --git a/src/ParentPlugin.php b/src/installer/ParentPlugin.php
similarity index 86%
rename from src/ParentPlugin.php
rename to src/installer/ParentPlugin.php
index 629e5ae..02f528b 100644
--- a/src/ParentPlugin.php
+++ b/src/installer/ParentPlugin.php
@@ -9,11 +9,12 @@ namespace Seacms\ComposerInstaller;
 
 use Composer\Composer;
 use Composer\IO\IOInterface;
+use Composer\Plugin\Capable;
 use Composer\Plugin\PluginInterface;
 use TopFloor\ComposerCleanupVcsDirs\Plugin as TopFloorPlugin;
 
 if (class_exists(TopFloorPlugin::class,true)){
-    abstract class ParentPlugin extends TopFloorPlugin
+    abstract class ParentPlugin extends TopFloorPlugin implements Capable
     {
         /**
          * const to test if TopFloorPlugin
@@ -22,7 +23,7 @@ if (class_exists(TopFloorPlugin::class,true)){
         protected const IS_TOP_FLOOR_PLUGIN = true;
     }
 } else {
-    abstract class ParentPlugin implements PluginInterface
+    abstract class ParentPlugin implements PluginInterface, Capable
     {
         
         /**
diff --git a/src/Plugin.php b/src/installer/Plugin.php
similarity index 97%
rename from src/Plugin.php
rename to src/installer/Plugin.php
index bb999be..8ae1988 100644
--- a/src/Plugin.php
+++ b/src/installer/Plugin.php
@@ -215,4 +215,12 @@ class Plugin extends ParentPlugin
         }
         throw new Exception("Correspondance not found");
     }
+
+    /* === implements Capable === */
+    public function getCapabilities()
+    {
+        return [
+            'Composer\Plugin\Capability\CommandProvider' => 'Seacms\\Command\\Command',
+        ];
+    }
 }
\ No newline at end of file