ansibloated/tasks/tasks_install_packages.yml

---
- name: "00: System upgrade"
  ansible.builtin.apt:
    upgrade: "dist"
    update_cache: "yes"

- name: "10: Determine needed system packages"
  ansible.builtin.set_fact:
    packages: "{{ lookup('ansible.builtin.file', '{{ item }}') | trim }}"
  with_first_found:
    - "files/{{ machine_type }}/{{ machine_subtype }}/packages.txt"
    - "files/{{ machine_type }}/packages.txt"
    - "files/packages.txt"

- name: "20: Install packages"
  ansible.builtin.package:
    name: "{{ _package_name }}" 
  loop: "{{ packages.splitlines() }}"
  loop_control:
    loop_var: "_package_name"