VRChat dynamic bone mod -
https://mega.nz/folder/nQ4HEQ6R#rTgdvgQjhPveM3rtwO8Ylw

Melonloader installer -
https://github.com/Slaynash/MelonLoaderAutoInstaller/releases

Stick the .bat into your vrchat directory, run it, and then stick the .dll into the mods folder.