Tod Bichig Keyboards -- 托忒蒙文的键盘布局 （输入法）
Mac Os X & Linux keyboards for typing Tod (Clear) script Mongolian. Tod script is used for writing Oirat Mongolian in Xinjiang and traditionally used by Kalmyks in Kalmykia.
MacOs X Keyboard
Drop the .bundle file into ~/Library/Keyboard Layouts
(You can find the Library by holding down the option key in Finder and selecting the 'Go' menu)
Go to System Preferences > Keyboard > Input Sources
Add Tod Script (It will probably be listed under 'Others')
The Linux keyboard is for X11 using xkb
Move the file "td" to usr/share/X11/xkb/symbols
Add the following to evdev.xml, located in usr/share/X11/xkb/rules.
<layout> <configItem> <name>td</name> <shortDescription>td</shortDescription> <description>Oirat</description> <languageList><iso639Id>xwo</iso639Id></languageList> </configItem> </layout>
Restart your computer
Currently the only fonts that properly support Unicode Todo bichig are the Oyun series of fonts supplied by Inner Mongolia University: http://oyun.mglip.com/mongolfont/index.aspx or their other font Mongolian BT http://trans.mglip.com/css/MONG140728_BT.ttf
The only other font that is mostly correct is Mongolian Baiti, but it has bugs with displaying ᡅ.