feat(Installer): Add Multi Desktop environnement in the installer to allow the user to choose wich desktop env

configs/baseline/airootfs/usr/local/bin/calamares-launcher

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+#!/bin/bash
+# Sélection de l'environnement de bureau AVANT le démarrage de Calamares.
+# Les services systemd n'héritent pas de $DISPLAY — on force :0 (session Xorg live).
+
+export DISPLAY=":0"
+
+DESKTOP="xfce"  # valeur par défaut si zenity échoue
+
+CHOICE=$(zenity \
+    --list \
+    --title="FWS — Environnement de bureau" \
+    --text="Quel environnement de bureau souhaitez-vous installer ?" \
+    --column="Environnement" \
+    --column="Description" \
+    --width=580 \
+    --height=340 \
+    "Xfce (Recommandé)"  "Léger et rapide — idéal pour tous les systèmes" \
+    "KDE Plasma"         "Moderne, riche en fonctionnalités et personnalisable" \
+    "GNOME"              "Interface épurée centrée sur la productivité" \
+    "Hyprland"           "Compositeur Wayland dynamique (utilisateurs avancés)" \
+    2>/dev/null) || true
+
+case "${CHOICE:-}" in
+    "Xfce (Recommandé)")  DESKTOP="xfce"     ;;
+    "KDE Plasma")         DESKTOP="kde"      ;;
+    "GNOME")              DESKTOP="gnome"    ;;
+    "Hyprland")           DESKTOP="hyprland" ;;
+    *)                    DESKTOP="xfce"     ;;
+esac
+
+printf '%s' "$DESKTOP" > /run/fws-desktop
+
+exec /usr/bin/calamares "$@"

configs/baseline/airootfs/usr/local/bin/fws-desktop-init-common

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+#!/bin/bash
+set -euo pipefail
+
+fws_first_user() {
+    awk -F: '$3 >= 1000 && $1 != "nobody" { print $1; exit }' /etc/passwd
+}
+
+fws_install_packages() {
+    pacman -Sy --noconfirm --needed "$@"
+}
+
+fws_enable_services() {
+    for service in "$@"; do
+        systemctl enable "$service" >/dev/null 2>&1 || true
+    done
+}
+
+fws_disable_services() {
+    for service in "$@"; do
+        systemctl disable "$service" >/dev/null 2>&1 || true
+    done
+}
+
+fws_write_dmrc() {
+    local user_name="$1"
+    local session_name="$2"
+
+    if [ -n "$user_name" ] && [ -d "/home/$user_name" ]; then
+        printf '[Desktop]\nSession=%s\n' "$session_name" > "/home/$user_name/.dmrc"
+    fi
+}
+
+fws_write_lightdm_config() {
+    local user_name="$1"
+    local session_name="$2"
+
+    if [ -z "$user_name" ]; then
+        return 0
+    fi
+
+    mkdir -p /etc/lightdm/lightdm.conf.d
+    printf '[Seat:*]\nautologin-user=%s\nautologin-user-timeout=0\nuser-session=%s\nautologin-session=%s\ngreeter-hide-users=true\nallow-guest=false\n' \
+        "$user_name" "$session_name" "$session_name" \
+        > /etc/lightdm/lightdm.conf.d/50-fws.conf
+}
+
+fws_write_sddm_config() {
+    local user_name="$1"
+    local session_name="$2"
+
+    if [ -z "$user_name" ]; then
+        return 0
+    fi
+
+    mkdir -p /etc/sddm.conf.d
+    printf '[Autologin]\nUser=%s\nSession=%s.desktop\nRelogin=false\n' \
+        "$user_name" "$session_name" \
+        > /etc/sddm.conf.d/50-fws.conf
+}
+
+# Paquets installés par défaut sur tous les bureaux
+fws_install_base_apps() {
+    fws_install_packages firefox libreoffice-fresh mariadb mariadb-clients
+    # Initialise la base de données MariaDB
+    mariadb-install-db --user=mysql --basedir=/usr --datadir=/var/lib/mysql \
+        >/dev/null 2>&1 || true
+    fws_enable_services mariadb.service
+}

configs/baseline/airootfs/usr/local/bin/fws-desktop-init-gnome

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+#!/bin/bash
+set -euo pipefail
+
+. /usr/local/bin/fws-desktop-init-common
+
+first_user="$(fws_first_user)"
+
+fws_install_base_apps
+fws_install_packages gnome sddm
+fws_disable_services lightdm.service gdm.service
+fws_enable_services sddm.service
+fws_write_sddm_config "$first_user" gnome
+fws_write_dmrc "$first_user" gnome

configs/baseline/airootfs/usr/local/bin/fws-desktop-init-hyprland

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+#!/bin/bash
+set -euo pipefail
+
+. /usr/local/bin/fws-desktop-init-common
+
+first_user="$(fws_first_user)"
+
+fws_install_base_apps
+fws_install_packages hyprland xdg-desktop-portal-hyprland xdg-desktop-portal-gtk \
+    waybar wofi kitty swaybg swayidle swaylock xorg-xwayland wl-clipboard \
+    grim slurp qt5-wayland qt6-wayland sddm
+fws_disable_services lightdm.service gdm.service
+fws_enable_services sddm.service
+fws_write_sddm_config "$first_user" hyprland
+fws_write_dmrc "$first_user" hyprland

configs/baseline/airootfs/usr/local/bin/fws-desktop-init-kde

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+#!/bin/bash
+set -euo pipefail
+
+. /usr/local/bin/fws-desktop-init-common
+
+first_user="$(fws_first_user)"
+
+fws_install_base_apps
+fws_install_packages plasma-meta konsole dolphin sddm
+fws_disable_services lightdm.service gdm.service
+fws_enable_services sddm.service
+fws_write_sddm_config "$first_user" plasma
+fws_write_dmrc "$first_user" plasma

configs/baseline/airootfs/usr/local/bin/fws-desktop-init-xfce

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -euo pipefail
+
+. /usr/local/bin/fws-desktop-init-common
+
+first_user="$(fws_first_user)"
+
+fws_install_base_apps
+fws_install_packages xfce4 xfce4-goodies lightdm lightdm-gtk-greeter
+fws_disable_services sddm.service gdm.service
+fws_enable_services lightdm.service
+fws_write_lightdm_config "$first_user" xfce
+fws_write_dmrc "$first_user" xfce