Of course, Needy Streamer Overload and by extension WSS Playground for the assets used.
This jsfiddle from a StackOverflow answer for resizable divs.
Thank you to https://chattable.neocities.org/ for making the page's chat possible!
The music player was largely inspired by lezzthanthree's amazing Needy Streamer Overload themed Rainmeter skin!
oneko.js, specifically this fork
Pien-chan pfp by @Yokkishai here