Ignition-Go

Bootstrap4 /Codeigniter 3 Modular (HMVC) App Building Framework - to build enterprise class web applications... Versions: CodeIgniter 3.1.9 AdminLTE 3.0.5 Bootstrap 4.5.0. Maintained by ci-blox on GitHub, where it has earned 182 stars from the community.

It's actively developed around modular, gulp, codeigniter, and is a solid reference for anyone building with these tools.