Model files in CI4

You can do it however you want! I generally make one model for every “class”, so if a table is something you would represent as an object then I model it, otherwise I simply access it using Query Builder.

With namespacing you can really put your files anywhere. There are advantages to placing them in the “Models” folder in each namespace (e.g. using Factories to access them) but as long as your namespace and folder structure match then the autoloader will find them.