I got mail.
Linux turns 25, is bigger and more professional than ever http://arstechnica.com/information-technology/2016/08/on-linuxs-25th-anniversary-development-has-gone-corporate/
Google will end support for Chrome apps on Windows, Mac, and Linux http://www.theverge.com/2016/8/19/12555052/google-shutting-down-chrome-apps
Unauthorized, mislabeled Microsoft support tool leaks; could cause more trouble than it cures http://www.zdnet.com/article/unauthorized-mislabeled-microsoft-support-tool-leaks-could-cause-more-trouble-than-it-cures/
If you need output resolution higher than your monitor's native resolution, you can use xrandr --scale.
For 4K resolution on full-hd monitor:
xrandr --output <monitor> --scale 2x2
If cursor is trapped in 1920x1080 area use --panning with target resolution:
xrandr --output <monitor> --scale 2x2 --panning 3840x2160+0+0
How I install Debian-based distros on USB drives in Virtualbox:
0. Make sure you have Oracle's VM extension pack installed.
1. Create a VM. without virtual HDD.
2. Mount installer ISO to VM's optical drive. netinstall images work too.
3. Attach USB drive to VM.
4. Boot VM and run install. Your USB drive should be visible in disk partitioning and bootloader configuration views.
To boot from your USB drive in Virtualbox VM, check this guide: http://www.howtogeek.com/187721/how-to-boot-from-a-usb-drive-in-virtualbox/
In case someone is developing a photo gallery app: