Thx a lot for your feedback.
This script is dedicated to deployment.
But sure, you can use it to "update automatically" by reinstalling like in original deployment, I mean download, compile and install.
The role makemkv first test is to check if /usr/bin/makemkv exist.
It means you only need to rename /usr/bin/makemkv to reinstall from scratch this software.
File: ansible-post-install-my-fedora/roles/makemkv/tasks/main.yml ( task in line 13 ).
Regarding Sudo, yeah Download, and Compile don't need root privileges compare to Install.
But keep in mind this script is multi roles and in a full deployment (using all or some roles) that make no sense to interrupt all times to ask validations or passwords.
Imagine using this script on 200 computers in one shot, you could do it.
This is the ansible philosphy, start your playbook and when it is done everything are in the state that you decided.
I hope my explanation is understanding.