@realms ah, this is mostly because I've got a bunch of separately build things which all come with their own independent self-contained CSS, but quite a lot of the self-contained CSS includes the same libraries into each component; this is needed when each one is used on its own! but when I use multiples, it's sadness because the library is in there multiple times. (For annoying reasons, I can't conveniently get at the components before they build.) So the dedupe is really the point.