This is a simple module system using CodeIgniter packages. No HMVC.
codeigniter/
application/
controllers/
welcome -> ../modules/welcome/controllers/
modules/
welcome/
controllers/
models/
views/
composer.json
composer.lock
public/
index.php
vendor/
codeigniter/
framework/
system/
$ cd /path/to/codeigniter
$ php -S localhost:8000 -t public/ bin/router.php
Access http://localhost:8080/welcome
.