Let's say I have an Inputfield module InputfieldAwesome, it has some custom JS as well and from there I want to execute some PHP via an ajax call. My question here is not how to implement the ajax and JS stuff, but where I would put the PHP that is called? I thought about creating a separate Process Module ProcessAwesome, which then resides as a page within /processwire (or custom admin url) (so /processwire/awesome would have the process of ProcessAwesome assigned to it) and has its execute