I'm working to add #Tootpick
https://github.com/Juerd/tootpick
to my website, which is statically built. I need some way to add a Tootpick link to each permalink, and I want to do it client-side via JavaScript (Tootpick needs JS anyway). So I need to add this JS to all the webpages, and I'm having #choiceParalysis on how to do it. Modify the base page template, or add a builder setup option?

(TBF, this is partially the fault of my builder, #ikiwiki, which isn't really friendly on this side of things).