How to embed angular module on another site?

I have a lot of sites on different engines (wp, joomla, etc.). I want to write a module on angular, which will implement some functionality, and then embed it on all sites. In this case, so that the module lay somewhere in one place, so that later if I changed it, the module changed everywhere. How can this be done, which way to look? I worked with angular a bit, but conceptually I don’t even understand how to do it