packages are more generic

- if config is needed, it has a file in vars/
- all imported vars for pkgs are namespaced with _<pkgname>

tasks/pkgs/nodejs.yml

@@ -1,8 +1,11 @@
 ---
+- ansible.builtin.include_vars:
+    file: nodejs.yml
+    name: _nodejs
 
 - name: append to pkgs
   set_fact:
-    syspkgs: "{{ syspkgs + [ 'nodejs', 'npm' ] }}"
+    syspkgs: "{{ syspkgs + _nodejs[ansible_system].pkgs }}"
   tags:
     - RedHat
     - linux