My question is how do you implement such solution on linux? looking at the Compose file for en_US.utf8 it seems composing sequence characters can only be mapped to another unicode code point: eg. <Multi_Key> <U10001100> <U10001100> : "'' " U1101
How do you compose keys with multi_key or dead keys that emit more than one code point?
Can this be implemented in the xkb keyboard layout/variant file? if so, how?