Tampermonkey scripts combine well with this kind of thing, IMO; I use bookmarklets for stuff I only want to happen on command (https://maya.land/bookmarklets/re

Tampermonkey scripts combine well with this kind of thing, IMO; I use bookmarklets for stuff I only want to happen on command (https://maya.land/bookmarklets/readable/ https://maya.land/bookmarklets/readable/) and Tampermonkey to automatically or conditionally invoke bits (https://maya.land/user-scripts/hypothesis/ https://maya.land/user-scripts/hypothesis/)