updated tasks so they are only run once

tasks/pkgs/xh.yml

@@ -1,13 +1,25 @@
 # vim: set filetype=yaml.ansible :
 ---
-- name: Append to pkg_sys
+- name: Add xh
   when:
-    - ansible_os_family == 'Darwin'
-  ansible.builtin.set_fact:
-    pkg_sys: "{{ pkg_sys + ['xh'] }}"
+    - xh_configured is undefined
+  block:
+    - name: Load xh config
+      ansible.builtin.include_tasks:
+        file: config/xh.yml
 
-- name: Add to cargopkgs
-  when:
-    - ansible_system == 'Linux'
-  ansible.builtin.set_fact:
-    pkg_cargo: "{{ pkg_cargo + [xh] }}"
+    - name: Append to pkg_sys
+      when:
+        - ansible_os_family == 'Darwin'
+      ansible.builtin.set_fact:
+        pkg_sys: "{{ pkg_sys + ['xh'] }}"
+
+    - name: Add to cargopkgs
+      when:
+        - ansible_system == 'Linux'
+      ansible.builtin.set_fact:
+        pkg_cargo: "{{ pkg_cargo + [xh] }}"
+
+    - name: Set xh_configured
+      ansible.builtin.set_fact:
+        xh_configured: true