Idea: SAS as AppRun

[xplshn]

@Samueru-sama do you think you could make this script usable as an AppRun?

• https://github.com/xplshn/pelf/blob/master/assets/AppRun.rootfs-based

Btw, I also think that the script could be separated into distinct files, and then cat *.sh >./sas.sh to build it. So that it can be a bit more organized, and function declarations can be grouped.