- name: Prepare the base environment
  hosts: localhost
  connection: local
  gather_facts: false

  pre_tasks:
    - name: 'Ensure the "chezmoi" variable is set'
      ansible.builtin.assert:
        that:
          - chezmoi is not undefined
          - chezmoi is mapping
        fail_msg: 'Pass with: --extra-vars "$(chezmoi data --format=json)"'

    - name: 'Example: access the "user" fields'
      ansible.builtin.debug:
        msg:
          - "user: {{ chezmoi.username | default('n/a') }}"