How to package a custom IPM resource processor?

I have a custom IPM resource processor like:

<Resource Name="example.json" ProcessorClass="OSEX.ipm.demo.IpmResourceProcessor" Foo="from manifest Resource attribute"/>

What is the best practice to deploy the custom resource processors to the IRIS instance? It can't be part of the module that uses it for obvious (?) chicken-egg situation.

My best idea atm is to put all those custom processors into a (library) module and all modules using any of them just have a dependency to the custom processors module.