Sxmo, or Simple X Mobile, is a collection of simple and suckless X programs and scripts used together to create a fully functional mobile UI adhering to the Unix philosophy for the Pinephone.
pmbootstrap config ui sxmo
Alternatively, you may download a PostmarketOS image with Sxmo preinstalled (equivalent to running
pmbootstrap init and selecting
sxmo as the interface): 
Note that Sxmo is designed for the Pinephone, so don't expect everything to work well on any device out of the box. However, Sxmo is open to contributions that would help to extend portability, see this issue. See below for how to improve functionality on other devices.
Refer to the userguide for detailed usage instructions.
State on other devices
Basic functionality forks well out of the box on almost any mainline device. However, there are some things that are still have to be generalised, like:
- Vibration (sxmo_vibratepine doesn't work on msm8916 even if correct path to vibrate device is set)
- Sound control (need to get it completly universal instead of hardcoding alsa devices)
Fonts on devices with smaller screens can be configured using the variables
svkbd.font in the file
~/.Xresources. The positioning of the xdm login greeter can be configured with the
xlogin*geometry line of the file