PSR-6 and PSR-16 Cache Adapters for CodeIgniter 4

Authentication and Authorization for CodeIgniter 4

Task Scheduler for CodeIgnter 4

Open Source PHP Framework (originally from EllisLab)

Settings Library for CodeIgniter 4

CodeIgniter 4.x API

System message translations for CodeIgniter4

CodeIgniter 4 User Guide

PHP framework

CodeIgniter 4 app starter