diff --git a/README.md b/README.md
index bc9553c..f279643 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,21 @@
-# linux VM for dev
+# VM linux pour dev @ epita Toulouse
 
-- create installation ISO
-    - write ISO RC
+## Utiliser
+
+1. installer VirtualBox https://www.virtualbox.org/wiki/Downloads
+2. télécharger la vm au format .ova
+3. importer la vm dans 
+
+## Contribuer
+
+### Fabrication
+
+La fabrication du vdi est assez farfelue mais ça marche assez bien.
+Les étapes de la fabrication sont les suivantes :
+
+- création d'un ISO d'installation archlinux
+    - généré à partir du profil dans `./profile`
+    - contient un script d'installation automatisé qui est exécuté au boot
 
 - create empty VM
 - start VM on ISO
diff --git a/build.sh b/build.sh
index 59913b9..3530c89 100755
--- a/build.sh
+++ b/build.sh
@@ -5,16 +5,18 @@ cd "$(dirname "$(realpath "$0")")"
 alias log='echo [build.sh]'
 
 
+ETH_DEV=$(route | grep '^default' | grep -o '[^ ]*$')
+VM_NAME="epitls_build"
+
+
 log "creating iso"
-    sudo rm -fr tmp
+    sudo rm -fr tmp/*
     mkdir -p tmp output
     sudo mkarchiso -v -w $PWD/tmp/wdir -r -o $PWD/output $PWD/profile
+    rm -f                     output/install.iso
     mv output/archlinux-*.iso output/install.iso
 
 
-VM_NAME="epitls_build"
-
-
 if VBoxManage showvminfo $VM_NAME 2> /dev/null
 then log "disposing old VM"
     VBoxManage unregistervm $VM_NAME --delete-all
@@ -22,13 +24,25 @@ fi
 
 
 log "creating VM"
-    VBoxManage createvm --name=$VM_NAME --register
+    VBoxManage createvm --name=$VM_NAME --ostype=ArchLinux_64 --register
+    VBoxManage modifyvm        $VM_NAME --cpus=4 --memory=4096 --vram=12
+    VBoxManage modifyvm        $VM_NAME --nic1=bridged --bridgeadapter1=$ETH_DEV
+    VBoxManage createhd --filename=$PWD/tmp/drive.vdi --size=$((1024 * 20)) --variant=Standard
+    VBoxManage storagectl      $VM_NAME       --name=SATA --add sata --bootable on
+    VBoxManage storageattach   $VM_NAME --storagectl=SATA --port=0 --device=0 --type=hdd      --medium=$PWD/tmp/drive.vdi
+    VBoxManage storagectl      $VM_NAME       --name=IDE  --add ide
+    VBoxManage storageattach   $VM_NAME --storagectl=IDE  --port=0 --device=0 --type=dvddrive --medium=$PWD/output/install.iso
 
 
 log "running VM with iso"
-    virtualboxvm --startvm $VM_NAME --dvd output/install.iso
+    virtualboxvm --startvm $VM_NAME --dvd $PWD/output/install.iso
+    VBoxManage storageattach   $VM_NAME --storagectl=IDE  --port=0 --device=0 --medium=none
+
+
+log "exporting VM"
+    rm -f                               $PWD/output/epitls.ova
+    VBoxManage export $VM_NAME --output=$PWD/output/epitls.ova --vsys=0 --vmname=epitls --description="VM pour le développement à EPITA Toulouse"
 
 
 log "disposing VM"
     VBoxManage unregistervm $VM_NAME --delete-all
-
diff --git a/profile/airootfs/root/.automated_script.sh b/profile/airootfs/root/.automated_script.sh
deleted file mode 100755
index 0d95012..0000000
--- a/profile/airootfs/root/.automated_script.sh
+++ /dev/null
@@ -1,44 +0,0 @@
-#!/usr/bin/env bash
-
-script_cmdline() {
-    local param
-    for param in $(</proc/cmdline); do
-        case "${param}" in
-            script=*)
-                echo "${param#*=}"
-                return 0
-                ;;
-        esac
-    done
-}
-
-automated_script() {
-    local script rt
-    script="$(script_cmdline)"
-    if [[ -n "${script}" && ! -x /tmp/startup_script ]]; then
-        if [[ "${script}" =~ ^((http|https|ftp|tftp)://) ]]; then
-            # there's no synchronization for network availability before executing this script
-            printf '%s: waiting for network-online.target\n' "$0"
-            until systemctl --quiet is-active network-online.target; do
-                sleep 1
-            done
-            printf '%s: downloading %s\n' "$0" "${script}"
-            curl "${script}" --location --retry-connrefused --retry 10 -s -o /tmp/startup_script
-            rt=$?
-        else
-            cp "${script}" /tmp/startup_script
-            rt=$?
-        fi
-        if [[ ${rt} -eq 0 ]]; then
-            chmod +x /tmp/startup_script
-            printf '%s: executing automated script\n' "$0"
-            # note that script is executed when other services (like pacman-init) may be still in progress, please
-            # synchronize to "systemctl is-system-running --wait" when your script depends on other services
-            /tmp/startup_script
-        fi
-    fi
-}
-
-if [[ $(tty) == "/dev/tty1" ]]; then
-    automated_script
-fi
diff --git a/profile/airootfs/root/.zlogin b/profile/airootfs/root/.zlogin
index bf6bc8f..412ec47 100644
--- a/profile/airootfs/root/.zlogin
+++ b/profile/airootfs/root/.zlogin
@@ -3,4 +3,14 @@ if grep -Fqa 'accessibility=' /proc/cmdline &> /dev/null; then
     setopt SINGLE_LINE_ZLE
 fi
 
-~/.automated_script.sh
+loadkeys fr
+
+echo "[.zlogin] ____ starting auto install ____"
+archinstall --config ./user_configuration.json --creds ./user_credentials.json
+echo "[.zlogin] ____ finished auto install ____"
+echo "[.zlogin] ____ starting post install ____"
+sh post_install.sh
+echo "[.zlogin] ____ finished post install ____"
+
+#     echo "[.zlogin] shutting down ..."
+#     # shutdown now
diff --git a/profile/airootfs/root/post_install.sh b/profile/airootfs/root/post_install.sh
new file mode 100644
index 0000000..acc9460
--- /dev/null
+++ b/profile/airootfs/root/post_install.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+set -e
+alias log='echo [post_install.sh]'
+
+
+ROOT=/mnt/archinstall
+
+
+log "altering linux confs"
+    sed -i 's|# %wheel ALL=(ALL:ALL) NOPASSWD: ALL|%wheel ALL=(ALL:ALL) NOPASSWD: ALL|g' "$ROOT/etc/sudoers"
+    sed -i 's|@includedir /etc/sudoers.d|# @includedir /etc/sudoers.d|g'                 "$ROOT/etc/sudoers"
+    sed -i 's|#ParallelDownloads = 5|ParallelDownloads = 5|g'                "$ROOT/etc/pacman.conf"
+    sed -i 's|SigLevel    = Required DatabaseOptional|SigLevel    = Never|g' "$ROOT/etc/pacman.conf"
+
+
+log "installing paru"
+    echo "
+        cd /tmp
+        git clone https://aur.archlinux.org/paru-bin.git
+        cd paru-bin
+        makepkg -si
+    " | arch-chroot "$ROOT" su user sh
diff --git a/profile/airootfs/root/user_configuration.json b/profile/airootfs/root/user_configuration.json
new file mode 100644
index 0000000..78ca4ea
--- /dev/null
+++ b/profile/airootfs/root/user_configuration.json
@@ -0,0 +1,153 @@
+{
+    "additional-repositories": [],
+    "archinstall-language": "English",
+    "audio_config": {
+        "audio": "pulseaudio"
+    },
+    "bootloader": "Limine",
+    "config_version": "2.7.1",
+    "debug": false,
+    "disk_config": {
+        "config_type": "default_layout",
+        "device_modifications": [
+            {
+                "device": "/dev/sda",
+                "partitions": [
+                    {
+                        "btrfs": [],
+                        "dev_path": null,
+                        "flags": [
+                            "Boot"
+                        ],
+                        "fs_type": "fat32",
+                        "mount_options": [],
+                        "mountpoint": "/boot",
+                        "obj_id": "d0c249bc-34fb-4e40-9211-25bef99178f3",
+                        "size": {
+                            "sector_size": {
+                                "unit": "B",
+                                "value": 512
+                            },
+                            "unit": "MiB",
+                            "value": 203
+                        },
+                        "start": {
+                            "sector_size": {
+                                "unit": "B",
+                                "value": 512
+                            },
+                            "unit": "MiB",
+                            "value": 3
+                        },
+                        "status": "create",
+                        "type": "primary"
+                    },
+                    {
+                        "btrfs": [],
+                        "dev_path": null,
+                        "flags": [],
+                        "fs_type": "ext4",
+                        "mount_options": [],
+                        "mountpoint": "/",
+                        "obj_id": "32195d81-ab74-4bf3-b653-f7b23f774dae",
+                        "size": {
+                            "sector_size": {
+                                "unit": "B",
+                                "value": 512
+                            },
+                            "unit": "B",
+                            "value": 21258829824
+                        },
+                        "start": {
+                            "sector_size": {
+                                "unit": "B",
+                                "value": 512
+                            },
+                            "unit": "B",
+                            "value": 216006656
+                        },
+                        "status": "create",
+                        "type": "primary"
+                    }
+                ],
+                "wipe": true
+            }
+        ]
+    },
+    "disk_encryption": null,
+    "hostname": "epitls",
+    "kernels": [
+        "linux"
+    ],
+    "locale_config": {
+        "kb_layout": "fr",
+        "sys_enc": "UTF-8",
+        "sys_lang": "en_US"
+    },
+    "mirror_config": {
+        "custom_mirrors": [],
+        "mirror_regions": {
+            "France": [
+                "https://mirrors.jtremesay.org/archlinux/$repo/os/$arch",
+                "https://mirrors.gandi.net/archlinux/$repo/os/$arch",
+                "https://mirrors.eric.ovh/arch/$repo/os/$arch",
+                "https://mirrors.celianvdb.fr/archlinux/$repo/os/$arch",
+                "https://mirror.wormhole.eu/archlinux/$repo/os/$arch",
+                "https://mirror.theo546.fr/archlinux/$repo/os/$arch",
+                "https://mirror.thekinrar.fr/archlinux/$repo/os/$arch",
+                "https://mirror.sysa.tech/archlinux/$repo/os/$arch",
+                "https://mirror.oldsql.cc/archlinux/$repo/os/$arch",
+                "https://mirror.its-tps.fr/archlinux/$repo/os/$arch",
+                "https://mirror.ibakerserver.pt/Arch/$repo/os/$arch",
+                "https://mirror.cyberbits.eu/archlinux/$repo/os/$arch",
+                "https://archlinux.mirrors.ovh.net/archlinux/$repo/os/$arch",
+                "https://archlinux.mailtunnel.eu/$repo/os/$arch",
+                "https://arch.yourlabs.org/$repo/os/$arch",
+                "http://mirrors.gandi.net/archlinux/$repo/os/$arch",
+                "http://mirrors.celianvdb.fr/archlinux/$repo/os/$arch",
+                "http://mirror.theo546.fr/archlinux/$repo/os/$arch",
+                "http://mirror.oldsql.cc/archlinux/$repo/os/$arch",
+                "http://mirror.lastmikoi.net/archlinux/$repo/os/$arch",
+                "http://mirror.its-tps.fr/archlinux/$repo/os/$arch",
+                "http://mirror.cyberbits.eu/archlinux/$repo/os/$arch",
+                "http://mirror.archlinux.ikoula.com/archlinux/$repo/os/$arch",
+                "http://mir.archlinux.fr/$repo/os/$arch",
+                "http://ftp.u-strasbg.fr/linux/distributions/archlinux/$repo/os/$arch",
+                "http://archlinux.mirrors.ovh.net/archlinux/$repo/os/$arch",
+                "http://archlinux.mailtunnel.eu/$repo/os/$arch",
+                "http://archlinux.datagr.am/$repo/os/$arch",
+                "http://arch.yourlabs.org/$repo/os/$arch"
+            ]
+        }
+    },
+    "network_config": {},
+    "no_pkg_lookups": false,
+    "ntp": true,
+    "offline": false,
+    "packages": [
+        "git",
+        "virtualbox-guest-utils"
+    ],
+    "parallel downloads": 0,
+    "profile_config": {
+        "gfx_driver": "All open-source",
+        "greeter": "lightdm-gtk-greeter",
+        "profile": {
+            "custom_settings": {
+                "Xfce4": {}
+            },
+            "details": [
+                "Xfce4"
+            ],
+            "main": "Desktop"
+        }
+    },
+    "script": "guided",
+    "silent": false,
+    "skip_ntp": false,
+    "skip_version_check": false,
+    "swap": true,
+    "timezone": "Europe/Paris",
+    "uki": false,
+    "version": "2.7.1"
+}
\ No newline at end of file
diff --git a/profile/airootfs/root/user_credentials.json b/profile/airootfs/root/user_credentials.json
new file mode 100644
index 0000000..f31fb90
--- /dev/null
+++ b/profile/airootfs/root/user_credentials.json
@@ -0,0 +1,10 @@
+{
+    "!root-password": "root",
+    "!users": [
+        {
+            "!password": "user",
+            "sudo": true,
+            "username": "user"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/profile/efiboot/loader/loader.conf b/profile/efiboot/loader/loader.conf
index 2d137aa..2244f6e 100644
--- a/profile/efiboot/loader/loader.conf
+++ b/profile/efiboot/loader/loader.conf
@@ -1,3 +1,3 @@
-timeout 15
+timeout 3
 default 01-archiso-x86_64-linux.conf
 beep on
diff --git a/profile/grub/grub.cfg b/profile/grub/grub.cfg
index 3486753..900ff52 100644
--- a/profile/grub/grub.cfg
+++ b/profile/grub/grub.cfg
@@ -54,7 +54,7 @@ fi
 
 # Set default menu entry
 default=archlinux
-timeout=15
+timeout=3
 timeout_style=menu
 
 
diff --git a/profile/grub/loopback.cfg b/profile/grub/loopback.cfg
index 3ee0d33..461dd69 100644
--- a/profile/grub/loopback.cfg
+++ b/profile/grub/loopback.cfg
@@ -22,7 +22,7 @@ fi
 
 # Set default menu entry
 default=archlinux
-timeout=15
+timeout=3
 timeout_style=menu
 
 
diff --git a/profile/pacman.conf b/profile/pacman.conf
index f382fab..48b05be 100644
--- a/profile/pacman.conf
+++ b/profile/pacman.conf
@@ -30,7 +30,7 @@ Architecture = auto
 
 # Misc options
 #UseSyslog
-#Color
+Color
 #NoProgressBar
 # We cannot check disk space from within a chroot environment
 #CheckSpace
@@ -39,7 +39,8 @@ ParallelDownloads = 5
 
 # By default, pacman accepts packages signed by keys that its local keyring
 # trusts (see pacman-key and its man page), as well as unsigned packages.
-SigLevel    = Required DatabaseOptional
+SigLevel    = Never
+#SigLevel    = Required DatabaseOptional
 LocalFileSigLevel = Optional
 #RemoteFileSigLevel = Required
 
diff --git a/profile/syslinux/archiso_sys.cfg b/profile/syslinux/archiso_sys.cfg
index d93bcfe..44ca781 100644
--- a/profile/syslinux/archiso_sys.cfg
+++ b/profile/syslinux/archiso_sys.cfg
@@ -1,7 +1,7 @@
 INCLUDE archiso_head.cfg
 
 DEFAULT arch64
-TIMEOUT 150
+TIMEOUT 30
 
 INCLUDE archiso_sys-linux.cfg