Tools such as Linux From Scratch, NimbleX Live CD Generator, Kiwi image system, and the Ubuntu Customization Kit can help you create your own custom Linux system.
GIMP isn’t the only option for photo manipulation. ImageMagick, a collection of command-line programs for image processing, can help you process multiple images in one go.
Can't make it to the 17th USENIX Security Symposium?
No Problem. Just register for the live streaming and follow the tutorials and technical sessions from your own PC. After the live transmission, you can view repeats of the talks, whenever and as often as you like.