diff --git a/AutoInstall/autoinstall.ksh b/AutoInstall/autoinstall.ksh
index 6068b4b..eab2654 100755
--- a/AutoInstall/autoinstall.ksh
+++ b/AutoInstall/autoinstall.ksh
@@ -1,88 +1,19 @@
 #! /bin/bash
+set -eou pipefail
+
 #--------------------------------------------
-# Script autoinstallation et configuration Ubuntu
+# Script autoinstallation et configuration Ubuntu/Debian
 #--------------------------------------------
-#Actualisation depots
-apt update
 
-# Maj Systeme avant AutoInstall
-apt update && apt full-upgrade -y
+fonctions_sources="./sources/fonctions.ksh"
 
-#Installation NALA
-curl https://gitlab.com/volian/volian-archive/-/raw/main/install-nala.sh | bash
-
-# MAJ Systeme
-nala full-upgrade -y
-
-#Installation Packages
-apt install btop httpie lsd -y
-
-#Telechargement Nerdfonts (Police Hackfont, la plus lisible)
-mkdir -p ~/.local/share/fonts/
-
-#Installation de la Police
-http -o ~/.local/share/fonts/Hack.zip --download https://github.com/ryanoasis/nerd-fonts/releases/download/v3.4.0/Hack.zip
-unzip ~/.local/share/fonts/Hack.zip
-rm ~/.local/share/fonts/Hack.zip
-
-#Mise a jour des polices
-fc-cache -f
-
-
-# 12/01/2026 desactivation des flatpak, ces derniers sont installables directement dans les depots de bases.
-#Installation Flatpak
-#add-apt-repository ppa:flatpak/stable -y
-nala install flatpak -y
-nala install gnome-software-plugin-flatpak -y
-#flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
-
-#Installation Fastfetch
-add-apt-repository ppa:zhangsongcui3371/fastfetch -y
-nala install fastfetch -y
-
-
-#Installation Packages Flatpak
-# <a faire plus tard>
-
-#Installation Mainline
-add-apt-repository ppa:cappelikan/ppa -y
-nala install mainline -y
-
-#Installation Atuin
-bash <(curl https://raw.githubusercontent.com/atuinsh/atuin/main/install.sh)
-
-#Installation ZSH
-nala install zsh -y
-
-#Configuration zsh+plugins
-sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
-
-#Installation Plugin ZSH
-
-git clone https://github.com/zsh-users/zsh-autosuggestions ~/.zsh/zsh-autosuggestions
-git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ~/.zsh/zsh-syntax-highlighting
-git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/.zsh/powerlevel10k
-
-echo "source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh" >> ~/.zshrc
-echo "source ~/.zsh/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh" >> ~/.zshrc
-echo "source ~/.zsh/powerlevel10k/powerlevel10k.zsh-theme" >> ~/.zshrc 
-
-# pré-chargement fichier zsh configure
-#source ~/.zshrc
-
-#Configuration megacommande maj"
-echo "alias maj='nala full-upgrade && flatpak upgrade && mainline install-latest && update-grub'" >> ~/.zshrc
-
-#Configuration des alias des commandes
-echo "alias ll='lsd -ltr'" >> ~/.zshrc
-echo "alias wget='http --download'" >> ~/.zshrc
-echo "alias du='duf' " >> ~/.zshrc
-
-#Relancer la config de zsh
-#p10k configure
-
-#Reboot
-# Ajouter un reboot a la fin
-echo ""
-echo ""
-echo "Installation Terminee"
+if [[ -f "${fonctions_sources}" ]]; then
+    {
+        . ./sources/fonctions.ksh
+    }
+else
+{
+    echo "Erreur : Impossible de charger les sources ${fonctions_sources}"
+    exit 1
+}
+fi
\ No newline at end of file
diff --git a/AutoInstall/sources/fonctions.ksh b/AutoInstall/sources/fonctions.ksh
new file mode 100644
index 0000000..1ed596f
--- /dev/null
+++ b/AutoInstall/sources/fonctions.ksh
@@ -0,0 +1,122 @@
+#!/bin/bash
+set -eou pipefail
+
+function maj_depot
+{
+   #Actualisation depots
+    apt update
+
+    # Maj Systeme avant AutoInstall
+    apt full-upgrade -y 
+}
+
+
+function maj_systeme
+{
+    nala full-upgrade -y
+}
+
+function maj_packages
+{
+    nala upgrade -y
+}
+
+function install_nala
+{
+    #Installation NALA
+    curl https://gitlab.com/volian/volian-archive/-/raw/main/install-nala.sh | bash
+}
+
+function install_nerdfont
+{
+    #Telechargement Nerdfonts (Police Hackfont, la plus lisible)
+    mkdir -p ~/.local/share/fonts/
+
+    #Installation de la Police
+    http -o ~/.local/share/fonts/Hack.zip --download https://github.com/ryanoasis/nerd-fonts/releases/download/v3.4.0/Hack.zip
+    unzip ~/.local/share/fonts/Hack.zip
+    rm ~/.local/share/fonts/Hack.zip
+
+    #Mise a jour des polices
+    fc-cache -f
+}
+
+function install_packages
+{
+    add-apt-repository ppa:zhangsongcui3371/fastfetch -y
+    nala install btop httpie fastfetch
+    snap install lsd
+    
+
+}
+
+function install_flatpaks
+{
+    # 12/01/2026 desactivation des flatpak, ces derniers sont installables directement dans les depots de bases.
+    #Installation Flatpak
+    #add-apt-repository ppa:flatpak/stable -y
+    nala install flatpak -y
+    nala install gnome-software-plugin-flatpak -y
+    #flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+
+    #Installation Packages Flatpak
+    # <a faire plus tard>
+}
+
+function install_mainline
+{
+    #Installation Mainline
+    add-apt-repository ppa:cappelikan/ppa -y
+    nala install mainline -y
+}
+
+function install_atuin
+{
+    #Installation Atuin
+    bash <(curl https://raw.githubusercontent.com/atuinsh/atuin/main/install.sh)
+}
+
+function install_zsh
+# ainsi que les plugins
+{
+    nala install zsh -y
+
+    #Configuration zsh+plugins
+    sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
+
+    #Installation Plugin ZSH
+
+    git clone https://github.com/zsh-users/zsh-autosuggestions ~/.zsh/zsh-autosuggestions
+    git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ~/.zsh/zsh-syntax-highlighting
+    git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ~/.zsh/powerlevel10k
+
+    echo "source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh" >> ~/.zshrc
+    echo "source ~/.zsh/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh" >> ~/.zshrc
+    echo "source ~/.zsh/powerlevel10k/powerlevel10k.zsh-theme" >> ~/.zshrc 
+
+    # pré-chargement fichier zsh configure
+    #source ~/.zshrc
+}
+
+function config_alias
+{
+    #Configuration megacommande maj"
+    echo "alias maj='nala full-upgrade && flatpak upgrade && mainline install-latest && update-grub'" >> ~/.zshrc
+
+    #Configuration des alias des commandes
+    echo "alias ll='lsd -ltr'" >> ~/.zshrc
+    echo "alias wget='http --download'" >> ~/.zshrc
+    echo "alias du='duf' " >> ~/.zshrc
+}
+
+function config_zsh
+{
+    #Relancer la config de zsh
+    p10k configure
+}
+
+function test_fonction
+{
+    clear
+    echo "TEST OK"
+}
\ No newline at end of file