Example of Kamal deployment from Github Actions.
Add your applications .env variables to the Github repo as a repository secret, you can find this under the repo settings => secrets and variables => actions
https://github.com/username/repo_name/settings/secrets/actions
you are going to need an ssh private key that your deployment server is aware of (add public key to servers .ssh/authorized_keys) and add the ssh private key as a repo secret
create action workflows