Kjwon15's Preonic layout

It provides almost full functionality for linux

It has screen capture key which is also used on sysq

Mouse layer

Press left spacebar to activate mouse mode. Right hand to move cursor/scroll, Left hand to click

Dual function keys

Right shift is also Enter key. If you press and hold, that key act as shift. But if you tap that key, It is enter key. If you want to press and hold enter key, Use left-bottom key. That is pure enter.

Blank layout

If you want to lock your keyboard, switch to this layout. It also useful when you want to clean your keyboard without disconnecting USB.

Pure mode

Dual function keys are so annoying when you playing game. Then use this layout