Screen keyboards in MS Excel and in Java for typing Tibetan characters
Keyboard layout switcher for X Widow System and Wayland
Custom Keyboard Layouts
Old Turkic Letters For Windows Keyboard
Keeps per window keyboard layout under X11
Unified Virtual Keyboard for Indian Languages
Simple X11 1-key Keyboard layout switcher
A Keyboard for Android with all the modifier keys, and other necessary keys available on a PC keyboard.
Parameterized, split-hand, concave, columnar, ergonomic keyboard