How make composer for driver

I could make a composer package for helpers
But how do make a package for drivers?
Or library?

See https://github.com/bhoupert/codeigniter-...-db-driver

This package uses App namespace, but you can set/use your own vendor namespace in your Composer package.

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

This is a library:
https://github.com/codeigniter4/shield

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