Custom keyboard layout - eviltoast

I would like to add a new keyboard layout (FR - AZERTY AFNOR). What is the correct way to do it ?

Ideally I would like to use it for everything:

  • full disk encryption
  • TTY
  • xenodm
  • xenocara session

For now, I updated /usr/X11R6/share/X11/xkb/symbols/fr to add the variant, which I load in xenodm and my xsession using setxkbmap.

However I feel like it’s not “clean” as it should be done with wsconsctl .

So what is the correct way to do it ?