How to set Codigniter 4 Email Config from Env

I was able to create a login function using "myth / auth". However, in the current state, information such as passwords will be published on github. Is there a way to read the settings from `env`?

Like this: https://github.com/codeigniter4/devkit/b...E.md#env-3

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

Like this: https://github.com/codeigniter4/devkit/b...E.md#env-3

Thank you Kenjis-san. Your Japanese page is also useful to me.
I understanded .env is related config for `app\Config\files`