set a chroot prefix maybe

roles/base/tasks/main.yaml

@@ -1,6 +1,6 @@
 ---
 - block:
-  # - import_tasks: archinstall/mirrorlist.yaml
+  - import_tasks: archinstall/mirrorlist.yaml
   - import_tasks: archinstall/partition.yaml
   - import_tasks: archinstall/initialize_root_zvol.yaml
   - import_tasks: archinstall/initialize_swap.yaml
@@ -8,5 +8,4 @@
   - import_tasks: archinstall/prepare_chroot.yaml
   - import_tasks: archinstall/install_os.yaml
   - import_tasks: archinstall/postinstall_snapshot.yaml
-  when: base_root_disks is defined and ansible_hostname == 'archiso'
-
+  when: archiso_detected and base_root_disks is defined

roles/detect_archiso/tasks/main.yaml

@@ -1,13 +1,9 @@
+---
 - name: check for archinstall in path
   command: which archinstall
   ignore_errors: true
   register: which_archinstall
 
-- name: inspect archinstall result
+- name: inspect archinstall check result
   set_fact:
     archiso_detected: "{{ which_archinstall.rc == 0 }}"
-
-- name: load alternate host vars
-  include_vars:
-    file: "../../../inventory/host_vars/{{ hostname }}.yaml"
-  when: archiso_detected and hostname is defined