support for other cloud providers besides AWS? DigitalOcean?

[vesper8]

it's not clear if this only works on AWS since AWS is repeatedly mentioned in the instructions.

If I would like to use this ansible playbook to install on another VPS such as Linode, Vultr or DigitalOcean, will it work or will things need to be changed/done manually?

[AlexP11223]

It's probably broken even for AWS because one of the submodules is not available (that's why I would always use only my forks for Ansible roles, btw imo galaxy requirements.yml is cleaner and easier to use than submodules), also iirc there were some breaking changes in Ansible 2.x.

But you can just look at the code as inspiration for your playbooks. That's what you should always do anyway (at least to understand what it does), blindly running someone else's Ansible playbooks/roles on your server is not the best idea.