Useful scripts/snippets for Linux (maybe BSD/MacOS?)

• ScrnTearFix - fixes screen tearing on Nvidia GPUs in DEs such as plasma and gnome
• screenlayout - sets my screen layout (1920x1080 & 768x1366 to the right)
• einstein-setup.sh - script to setup and install the einstein tool for DCU students
• einstein-upload-all.sh - script to upload all files of a specified extension to einstein
• hypr-scrnshot.sh - simple script for taking screenshots on Hyprland
• start-virtual-cam.sh - use ffmpeg to create a virtual camera so that more than one application may access the camera
• qt-fix.sh - recompile QT-GTK themes from the AUR against the currently-installed version of qt5 and qt6
• iommu-check.sh - lists all pcie devices and their IOMMU groups (useful for setting up vfio)
• video-wall.sh, video-wall-init.sh, video-wall-select.sh - a set of scripts for easily setting a video as a wallpaper (e.g. some Wallpaper Engine Wallpapers) using mpvpaper and dmenu
• other stuff - filenames are fairly self-explanatory