Dear,

I give a try to OpenSuse Leap 15, but I am unable to go further as they any way
to set bépo layout kexyboard.
I try from:
 1. Leap installer : as bépo was missing I choose the french layout
 once installation has finished:
 2. sudo yast2 keyboard: same layout proposal than given from installer
 3. sudo yast2/zypper search : nothing relevant found

The point (2) and (3) was done by trying to find each letter as I own only bépo
keyboard.

This layout is present on RHEL, RockyLinux 7,8,9 and Fedora.
It would be much appreciate to add it

Thanks best regards