Parent comment probably not worth engaging with .. but mentioning yarn / npm / node feels like some serious flamebait overkill here too :? If it were my projec

Parent comment probably not worth engaging with .. but mentioning yarn / npm / node feels like some serious flamebait overkill here too :? If it were my project I'd just be assuming contributors had internet access and advising in the readme to "search for a good 'bookmarklet generator', paste in your code, then test it". I'd then test their tested bookmarklet code before accepting any PRs. Thus reducing the repo to two files and 1% of current complexity, most of that being in the readme itself.