Hooks that are fired on the server side are only available for use for plugins in their server side code. Same for client side hooks they are only available for use in the client side code of plugins.
I was hoping that you guys might be able to point me in the right direction for handling custom pagination logic within a theme. I need to be able to define scroll up/scroll down events handlers so I can append or remove cards from the viewport based on direction of scrolling. I also want to disable pagination for certain categories regardless of user settings as these categories will only display topics as cards.