diff --git a/defaults/main.yml b/defaults/main.yml
index c8d9a89..2b5c147 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,3 +1,10 @@
 ---
+avahi_packages:
+  - 'avahi-daemon'
+  - 'avahi-utils'
+  #- 'avahi-discover'
+  #- 'mdns-scan'
+
+
 # should we do a version check? (recomended)
 submodules_versioncheck: false
diff --git a/tasks/install.yml b/tasks/install.yml
new file mode 100644
index 0000000..189369a
--- /dev/null
+++ b/tasks/install.yml
@@ -0,0 +1,14 @@
+---
+- name: Update apt cache
+  become: true
+  ansible.builtin.apt:
+    cache_valid_time: 3600
+    update_cache: true
+  when:
+    - ansible_pkg_mgr == "apt"
+
+- name: install avahi packages
+  become: true
+  ansible.builtin.package:
+    name: "{{ avahi_packages }}"
+    state: present
diff --git a/tasks/main.yml b/tasks/main.yml
index 7c5850f..0b83847 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -2,3 +2,12 @@
 - name: run optional versionscheck
   ansible.builtin.include_tasks: versioncheck.yml
   when: submodules_versioncheck|bool
+
+- name: gather os specific variables
+  ansible.builtin.include_vars: "{{ item }}"
+  with_first_found:
+    - "vars/{{ ansible_os_family }}.yml"
+    - "vars/os_fallback.yml"
+
+- name: install avahi requirements
+  ansible.builtin.include_tasks: install.yml
diff --git a/vars/Archlinux.yml b/vars/Archlinux.yml
new file mode 100644
index 0000000..4248975
--- /dev/null
+++ b/vars/Archlinux.yml
@@ -0,0 +1,3 @@
+---
+avahi_packages:
+  - avahi
diff --git a/vars/Debian.yml b/vars/Debian.yml
new file mode 100644
index 0000000..feb47ee
--- /dev/null
+++ b/vars/Debian.yml
@@ -0,0 +1,5 @@
+---
+avahi_packages:
+  - 'avahi-daemon'
+  - 'avahi-utils'
+  - 'avahi-discover'
diff --git a/vars/main.yml b/vars/main.yml
index bf4b0d9..5db3c75 100644
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -1,4 +1,4 @@
 ---
 # versionscheck
-playbook_version_number: 02   # should be a integer
-playbook_version_path: 'role-<some_unique_string>.version'
+playbook_version_number: 3
+playbook_version_path: 'do1jlr.avahi_daemon.version'
diff --git a/vars/os_fallback.yml b/vars/os_fallback.yml
new file mode 100644
index 0000000..4248975
--- /dev/null
+++ b/vars/os_fallback.yml
@@ -0,0 +1,3 @@
+---
+avahi_packages:
+  - avahi