diff --git a/.gitignore b/.gitignore
index eff44fb..811e918 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,8 @@
+# Directories
 ENV/
 tmp/
 
+# Files
 *.retry
 *.swp
+ansible.cfg
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 4bb4354..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,6 +0,0 @@
-[submodule "roles/basics"]
-	path = roles/basics
-	url = https://github.com/7adietri/ansible-basics.git
-[submodule "roles/nginx"]
-	path = roles/nginx
-	url = https://github.com/7adietri/ansible-nginx.git
diff --git a/README.md b/README.md
index db09e95..c2d62a9 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,21 @@ erforderlich.
 
 [ansible]: https://docs.ansible.com/ansible/latest/
 
+Abhängigkeiten installieren:
+
+```bash
+# Abhängigkeiten installieren mit Ansible Galaxy
+ansible-galaxy install -r requirements-galaxy.yml
+
+# Abhängigkeiten installieren mit GitHub
+ansible-galaxy install -r requirements-github.yml
+```
+
 ## Anwenden der Konfiguration auf alle Server
 
-    ./site
+```bash
+./site
+```
 
 Das Skript führt das Playbook `site.yml` aus. Zum Testen kann `-C` angehängt
 werden.
@@ -19,8 +31,12 @@ werden.
 
 Einschränken auf bestimmte Tags, z.B. `nginx`:
 
-    ./site -t nginx
+```bash
+./site -t nginx
+```
 
 Einschränken auf bestimmte Server:
 
-    ./site -l srv01
+```bash
+./site -l srv01
+```
diff --git a/requirements-galaxy.yml b/requirements-galaxy.yml
new file mode 100644
index 0000000..d091cc4
--- /dev/null
+++ b/requirements-galaxy.yml
@@ -0,0 +1,7 @@
+---
+- src: alxndr42.basics
+  name: basics
+  version: v1.11.0
+- src: alxndr42.nginx
+  name: nginx
+  version: v1.4.0
diff --git a/requirements-github.yml b/requirements-github.yml
new file mode 100644
index 0000000..4baac94
--- /dev/null
+++ b/requirements-github.yml
@@ -0,0 +1,7 @@
+---
+- src: https://github.com/alxndr42/ansible-basics.git
+  name: basics
+  version: v1.11.0
+- src: https://github.com/alxndr42/ansible-nginx.git
+  name: nginx
+  version: v1.4.0
diff --git a/roles/basics b/roles/basics
deleted file mode 160000
index d859daa..0000000
--- a/roles/basics
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit d859daa9e5a569af6a87d556a8add62b6ccffaab
diff --git a/roles/nginx b/roles/nginx
deleted file mode 160000
index 697304b..0000000
--- a/roles/nginx
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 697304bf0278e894a673592676419b615982de82