diff --git a/.github/workflows/phar-development.yml b/.github/workflows/phar-development.yml
index 221b637..c64b508 100644
--- a/.github/workflows/phar-development.yml
+++ b/.github/workflows/phar-development.yml
@@ -59,3 +59,6 @@ jobs:
 
             - name: "Run phar to see if it works"
               run: php nanbando.phar
+
+            - name: "Try plugins install inside of the example directory"
+              run: cd example && php ../nanbando.phar plugins:install
diff --git a/.gitignore b/.gitignore
index f86a7f9..3f801e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,7 @@ composer.lock
 *.iml
 
 .nanbando
-nanbando.json
+/nanbando.json
 nanbando.lock
 
 .github/phar-private.pem
diff --git a/composer.json b/composer.json
index 3dba1ac..883e337 100644
--- a/composer.json
+++ b/composer.json
@@ -14,9 +14,8 @@
         "ext-curl": "*",
         "ext-mbstring": "*",
         "ext-zip": "*",
-        "dflydev/embedded-composer": "dev-master",
+        "nanbando/embedded-composer": "^1.0",
         "composer/composer": "^2.0",
-        "padraic/humbug_get_contents": "dev-master as 1.1.3",
         "symfony/console": "^5.2",
         "symfony/http-kernel": "^5.2",
         "symfony/dependency-injection": "^5.2",
@@ -28,7 +27,7 @@
         "symfony/filesystem": "^5.2",
         "symfony/proxy-manager-bridge": "^5.2",
         "scriptfusion/byte-formatter": "^3.2",
-        "padraic/phar-updater": "~1.0.4",
+        "nanbando/phar-updater": "^2.0.1",
         "cocur/slugify": "^4.0",
         "neutron/temporary-filesystem": "^3.0",
         "emgag/flysystem-hash": "^1.0",
diff --git a/example/nanbando.json b/example/nanbando.json
new file mode 100644
index 0000000..f7ba92e
--- /dev/null
+++ b/example/nanbando.json
@@ -0,0 +1,20 @@
+{
+    "name": "nanbando/example",
+    "backup": {
+        "uploads": {
+            "plugin": "directory",
+            "parameter": {
+                "directory": "var/uploads"
+            }
+        },
+        "database": {
+            "plugin": "mysql",
+            "parameter": {
+                "databaseUrl": "mysql://root:root@127.0.0.1:3306/example"
+            }
+        }
+    },
+    "require": {
+        "nanbando/mysql": "^0.4.1"
+    }
+}