Design Principles - An open source repository of design principles and methods
Sway - Sway is a drop-in replacement for the i3 window manager, but for Wayland instead of X11.
Facebook Design Resources - A collection of free resources made by designers at Facebook
Plum Village - Free mindfulness app w/ Zen Buddhist meditations + teachings
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
Calmind - Be smarter, less stressed, and healthier—just by listening!