fixed packages to be more generic

tasks/pkgs/zsh.yml

@@ -10,12 +10,14 @@
   ansible.builtin.set_fact:
     zsh:
       methods:
-        - system
+        default: [system]
       pkgname:
-        RedHat: zsh
-        Debian: zsh
-        Alpine: zsh
-        Archlinux: zsh
+        default: zsh
+- name: Finalise zsh default facts
+  ansible.builtin.set_fact:
+    zsh:
+      methods: "{{ zsh.methods[os_family] | default(zsh.methods.default) }}"
+      pkgname: "{{ zsh.pkgname[os_family] | default(zsh.pkgname.default) }}"
 # }}}
 - name: Add zsh
   when:
@@ -33,11 +35,11 @@
       block:
         - name: Queue zsh system install
           ansible.builtin.set_fact:
-            pkg_sys: "{{ pkg_sys + [zsh.pkgname[os_family]] }}"
+            pkg_sys: "{{ pkg_sys + [zsh.pkgname] }}"
 
         - name: Finalise zsh system install
           ansible.builtin.set_fact:
-            zsh_install: "{{ zsh_imethod }}={{ zsh.pkgname[os_family] }}"
+            zsh_install: "{{ zsh_imethod }}={{ zsh.pkgname }}"
 
     - name: Configure zsh source install
       when: