Editliveos ----kickstart option won't load i18n or l10n features ( timezone , keyboard, lang)


I’ve tried to use lived-tools for a couple of years now (wonderful tools !) but the sparse documentation is sometimes challenging and might need more elaboration, explanations and examples to be accessible for people with (sometimes very!) limited programming skills. (…So: How can I contribute ?)

One of my basic goals for using livecd-tools is to customize a Fedora Workstation Live Image .iso file from en_US/EST(America) to fr_FR/CEST(Europe)

The kickstart file (my.cfg) I’ve used is very basic:

# Keyboard layouts
keyboard --vckeymap=fr-oss --xlayouts='fr (oss)'

# System language
lang fr_FR.UTF-8

# System timezone
timezone Europe/Paris

So the command should be basic:

sudo editliveos --name Fedora-Workstation-Live-x86_64-32-1.6-FR --tmpdir < tmpdir > --output < dir > --kickstart < my.cfg > <path>/Fedora-Workstation-Live-x86_64-32-1.6.iso

Commands exits without error :
'LiveOS edit has completed. Process duration: 00:18:07"

But the desired FR version of the .iso file is still en_US/EST(America) and neither in french keyboard, Europe CEST timezone nor in French Language…
What did I do wrong ?..

Note: This thred might also be related to this one