more package fixes

tasks/pkgs/nerdfonts.yml

@@ -1,14 +1,16 @@
 # vim: set filetype=yaml.ansible :
 ---
 - name: Append to srcpkgs
+  when:
+    - ansible_system == 'Linux'
   ansible.builtin.set_fact:
     pkg_archive: "{{ pkg_archive + ['nerdfonts'] }}"
-  when: ansible_system == 'Linux'
 
 - name: Append to caskpkgs
-  ansible.builtin.set_fact:
-    pkg_cask: "{{ pkg_cask + [pkgconfig.nerdfonts.fonts[font].brew] }}"
+  when:
+    - ansible_system == 'Darwin'
   loop: "{{ nerdfonts.fonts }}"
   loop_control:
     loop_var: font
-  when: ansible_system == 'Darwin'
+  ansible.builtin.set_fact:
+    pkg_cask: "{{ pkg_cask + [pkgconfig.nerdfonts.fonts[font].brew] }}"