[!IMPORTANT] GitHub traduzido para o português
You can only run one userscript at a time or else it will break both.
Yes this is safe, there have been zero recorded cases of a Khan account being banned for hacks (they've started fixing the hack but nothing against users.).
Also if you're asking if this is a virus it is 100% open sourced forever so you can look through the code to see for yourself.
Star the repo, or join the discord.