A bunch of scripts for installing software which ins't avaiable in popular pacakage managers. e.g. SDL2
These scripts can link to other scripts hosted by other people on the web.
These other scripts can change at any time without warning - someone could easily drop a :(){ :|:& };: or worse in there.
It is your own personal resposibility to look through the code which will run before you execute it.
If in doubt, do not run the scripts.