How do I use this?

[davidmankin]

I'm new to Ansible, so I tried dropping this repo in a dozen places and none of them did it work with your pihole gist. For every one it said "can't find role bendews.cloudflared". This repo doesn't seem to have a roles directory; neither does the pihole gist.

[ymarkus]

The easiest way is to install it with ansible-galaxy by issuing this command:
ansible-galaxy install bendews.cloudflared

After it is installed, you can use it in multiple ways, e.g. by including it in your playbook:

- name: cloudflared
  include_role: bendews.cloudflared

For more information, see the Ansible Documentation.