WebGL version of "USS Deep Explorer" supports now QWERTY/AZERTY in same time.
I have applyied new good formula :
Input Settings for Keyboard = ["Arrow" layout] + ["Azerty" layout] + ["Qwerty" layout] = Happy players :-D
In Unity :

To test it : http://eice.be/ld40/
To "Windows" versions : https://ldjam.com/events/ludum-dare/40/uss-deep-explorer