TIL that: tampermonkey has not been open source for yearsmany of my userscripts (which typically are JUST injecting css) have been broken due to CSPs preventing the injection of CSSUsing violentmonkey and the "real GM_addStyle" function (rather than a coded-up block to inject a script tag into the document) fixes these issues. And in particular, it allows 2 of my userscripts to run properly here on my home mastodon server again. yay. (the zip export from greasemonkey mostly seemed to import into tampermonkey, except a couple of scripts that were so old they were about fixing google+ layout quirks!)