Sway - Sway is a drop-in replacement for the i3 window manager, but for Wayland instead of X11.
FlowVR - Virtual reality app with highly effective guided meditations
Plum Village - Free mindfulness app w/ Zen Buddhist meditations + teachings
Headspace - Meditation made simple. Brilliant things happen in calm minds.
Calmind - Be smarter, less stressed, and healthier—just by listening!
Calm - Calm.com can help you reduce stress and increase calm.