If you run FLEx on Linux, KMFL (Keyboard Mapping For Linux) is a keyboarding input method for the Ubuntu platform. KMFL allows the use of existing Keyman keyboards on Ubuntu, provided their source file in .kmn format is available. KMFL works with IBus (Intelligent Input Bus for Linux).
Add an input language - Windows®
https://github.com/sillsdev/FwDocumentation/wiki/Installing-KMFL-on-Ubuntu
https://help.ubuntu.com/community/ibus
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