diff --git a/ansible/roles/base/tasks/main.yml b/ansible/roles/base/tasks/main.yml
index 555a122..fd63464 100644
--- a/ansible/roles/base/tasks/main.yml
+++ b/ansible/roles/base/tasks/main.yml
@@ -1,3 +1,7 @@
+- name: Source les variables dépendantes de la distribution
+  ansible.builtin.import_tasks: variables.yml
+  tags: always
+
 - name: Utilisateurs existants
   ansible.builtin.getent:
     database: passwd
diff --git a/ansible/roles/base/tasks/variables.yml b/ansible/roles/base/tasks/variables.yml
new file mode 100644
index 0000000..1ae51cc
--- /dev/null
+++ b/ansible/roles/base/tasks/variables.yml
@@ -0,0 +1,37 @@
+- name: Block variables de système d'exploitation
+  vars:
+    _distribution_lts_offset: >-
+      {{
+        ansible_facts['distribution_major_version'] | int % 2
+        if ansible_facts['distribution'] == "Ubuntu"
+        else 0
+      }}
+    _distribution_lts_version: >-
+      {{
+        ansible_facts['distribution_major_version'] | int -
+        _distribution_lts_offset | int
+        if ansible_facts['distribution'] == "Ubuntu"
+        else ansible_facts['distribution_version']
+      }}
+    params:
+      files:
+        - "{{ ansible_facts['distribution'] }}_{{ _distribution_lts_version }}.yml"
+        - "{{ ansible_facts['distribution'] }}_{{ ansible_facts['distribution_major_version'] }}.yml"
+        - "{{ ansible_facts['os_family'] }}_{{ ansible_facts['distribution_major_version'] }}.yml"
+        - "{{ ansible_facts['distribution'] }}.yml"
+        - "{{ ansible_facts['os_family'] }}.yml"
+        - main.yml  # fallback, vars/main.yml is always loaded by Ansible
+      paths:
+        - "{{ role_path }}/vars"
+        - "{{ playbook_dir }}/vars"
+  block:
+    - name: Affiche variables
+      ansible.builtin.debug:
+        msg: |
+          Recherche de fichier de variables dans :
+          {{ params | to_yaml }}
+    - debug:
+        msg: "Utilise {{ lookup('first_found', params) }}"
+    - name: Charge variables
+      ansible.builtin.include_vars: "{{ lookup('first_found', params) }}"
+
diff --git a/ansible/roles/base/vars/Ubuntu.yml b/ansible/roles/base/vars/Ubuntu.yml
new file mode 100644
index 0000000..2fbd4d3
--- /dev/null
+++ b/ansible/roles/base/vars/Ubuntu.yml
@@ -0,0 +1,18 @@
+required_packages:
+  - nextcloud-desktop
+  - gimp
+  - vlc
+  - deja-dup
+  - thunderbird
+  - pdfarranger
+  - nautilus-image-converter
+  - nautilus-nextcloud
+  - nautilus-image-converter
+  - flatpak
+
+remove_packages: []
+
+
+required_flatpak:
+  - io.github.ungoogled_software.ungoogled_chromium
+
diff --git a/ansible/roles/base/vars/main.yml b/ansible/roles/base/vars/mint.yml
similarity index 100%
rename from ansible/roles/base/vars/main.yml
rename to ansible/roles/base/vars/mint.yml