have a workign copy now

tasks/pkgs/flatpak.yml

@@ -11,10 +11,24 @@
     flatpak:
       install_methods:
         - system
-      pkgname: "{{ pkglist[os_family] }}"
+      pkgname: flatpak
 # }}}
-- name: Append flatpak to pkg_sys
+- name: Configure flatpak
   when:
-    - ansible_system == 'Linux'
-  ansible.builtin.set_fact:
-    pkg_sys: "{{ pkg_sys + ['flatpak'] }}"
+    - "'flatpak' not in __configured"
+  block:
+    - name: Set flatpak install method
+      when:
+        - flatpak_install_method is undefined
+      ansible.builtin.set_fact:
+        flatpak_install_method: "{{ install_method if install_method in flatpak.install_methods else flatpak.install_methods[0] }}"
+
+    - name: Append flatpak to pkg_sys
+      when:
+        - flatpak_install_method == 'system'
+      ansible.builtin.set_fact:
+        pkg_sys: "{{ pkg_sys + [flatpak.pkgname] }}"
+
+    - name: Finalise flatpak configuration
+      ansible.builtin.set_fact:
+        __configured: "{{ __configured | combine( { 'flatpak': flatpak_install_method } ) }}"