I'll just post this all in one spot

In order to install these scripts you'll need a userscript manager. I recommend Violentmonkey since it's open source

https://violentmonkey.github.io/

QOL script for endchan: https://github.com/JacobSvenningsen/endchan-script
8ball and more: https://pastebin.com/LGpcq1wJ
Page mascot: https://pastebin.com/yjwXhRv2