diff --git a/tasks/devel-Archlinux.yml b/tasks/devel-Archlinux.yml
index 395344b..c2f6212 100644
--- a/tasks/devel-Archlinux.yml
+++ b/tasks/devel-Archlinux.yml
@@ -11,6 +11,13 @@
       vars:
         packages:
           - visual-studio-code
+    - name: vscode - Basics - Additional dependencies
+      package:
+        name: "{{ packages }}"
+        state: present
+      vars:
+        packages:
+          - plantuml
     - name: vscode - Basics - Copy global settings
       copy:
         src: "{{ role_path }}/files/vscode-settings.json"
diff --git a/tasks/devel-Darwin.yml b/tasks/devel-Darwin.yml
index 749eb6e..2ad4c1c 100644
--- a/tasks/devel-Darwin.yml
+++ b/tasks/devel-Darwin.yml
@@ -11,6 +11,20 @@
       vars:
         packages:
           - visual-studio-code
+    - name: vscode - Basics - Additional dependencies (1)
+      homebrew_cask:
+        name: "{{ packages }}"
+        state: present
+      vars:
+        packages:
+          - java
+    - name: vscode - Basics - Additional dependencies (2)
+      homebrew:
+        name: "{{ packages }}"
+        state: present
+      vars:
+        packages:
+          - graphviz
     - name: vscode - Basics - Copy global settings
       copy:
         src: "{{ role_path }}/files/vscode-settings.json"
diff --git a/tasks/devel-Debian.yml b/tasks/devel-Debian.yml
index 1b24431..9dd31fd 100644
--- a/tasks/devel-Debian.yml
+++ b/tasks/devel-Debian.yml
@@ -12,6 +12,15 @@
       vars:
         packages:
           - visual-studio-code
+    - name: vscode - Basics - Additional dependencies
+      become: yes
+      package:
+        name: "{{ packages }}"
+        state: present
+      vars:
+        packages:
+          - plantuml
+          - graphviz
     - name: vscode - Basics - Copy global settings
       copy:
         src: "{{ role_path }}/files/vscode-settings.json"
diff --git a/tasks/devel.yml b/tasks/devel.yml
index e6e1b16..362ca36 100644
--- a/tasks/devel.yml
+++ b/tasks/devel.yml
@@ -26,8 +26,10 @@
         PATH=/usr/local/bin:$PATH
         code --install-extension chiehyu.vscode-astyle
         code --install-extension editorconfig
+        code --install-extension mhutchie.git-graph
 
         code --install-extension yzane.markdown-pdf
+        code --install-extension jebbs.plantuml
 
         # code --install-extension james-yu.latex-workshop
         # code --install-extension ban.spellright