enable system-specific software installation

roles/common/tasks/software.yml

@@ -1,6 +1,6 @@
 ---
 
-### Uninstall Raspbian bloat
+# Uninstall Raspbian bloat
 - name: remove raspbian bloat
   apt:
     name="{{ packages }}"
@@ -20,7 +20,7 @@
   tags:
     - sw
 
-### Install required software
+# Install required software
 - name: install basic software environment
   apt:
     name="{{ packages }}"
@@ -34,3 +34,12 @@
       - ufw
   tags:
     - sw
+
+- name: install additional software
+  apt:
+    name="{{ myconfig.extra_software }}"
+    state=present
+    update_cache=yes
+  when: "'extra_software' in myconfig"
+  tags:
+    - sw

roles/common/vars/main.yml

@@ -37,6 +37,8 @@ macaddrs:
         enable_serial_hw: True
         enable_onewire: False
         enable_rgpio: False
+        extra_software:
+          - w3m
 
 ### Users that must be present on the system
 create_users: