diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b72f9be
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*~
+*.swp
diff --git a/README.md b/README.md
index 65d06bd..891f0c8 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,21 @@
 
 # lstu_ynh
 
-DON'T WORK/ NE FONCTIONNE PAS !!
+Seems to work, but need some testing.
+
+## Todo
+
+- [ ] Integrate with LDAP
+- [ ] Add a question for the admin features' password
+- [ ] Allow to choose the database (sqlite or PostgreSQL)
+- [ ] Allow to choose to use Minion
+- [ ] Add CI stuff
+
+# Contributing
 
 To contribute see the package lutim_ynh as example.
 Pour contribuer regardez le paquet lutim_ynh comme exemple.
 
 lutim_ynh : https://github.com/YunoHost-Apps/lutim_ynh
-Site officiel de lstu: https://git.framasoft.org/luc/lstu
+Site officiel de lstu: https://framagit.org/luc/lstu
 
diff --git a/conf/logrotate b/conf/logrotate
new file mode 100644
index 0000000..d116834
--- /dev/null
+++ b/conf/logrotate
@@ -0,0 +1,21 @@
+
+__FINALPATH__/log/production.log {
+		# Effectue une rotation des logs tout les mois
+	monthly
+		# Ou si le fichier de log dépasse 100Mo
+	size 100M
+		# Garde un maximum de 12 anciens logs
+	rotate 12
+		# Compresse pas les logs avec gzip
+	compress
+		# Compresse le log au cycle suivant. Donc garde toujours 2 logs non compressés.
+	delaycompress
+		# Copie et tronque le journal pour permettre la poursuite de l'écriture. Plutôt que de déplacer le log.
+	copytruncate
+		# Ne renvoi pas d'erreur si le fichier de log est absent.
+	missingok
+		# Ne fait pas de rotation si le log est vide.
+	notifempty
+		# Garde les anciens logs dans le même dossier.
+	noolddir
+}
diff --git a/conf/lstu-minion@.service b/conf/lstu-minion@.service
new file mode 100644
index 0000000..cc9931a
--- /dev/null
+++ b/conf/lstu-minion@.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Shortened URLs service job queue
+Documentation=https://framagit.org/luc/lstu
+
+[Service]
+Type=simple
+User=www-data
+WorkingDirectory=__FINALPATH__
+ExecStart=/usr/local/bin/carton exec script/application minion worker
+
+[Install]
+WantedBy=multi-user.target
diff --git a/conf/lstu.conf.template b/conf/lstu.conf.template
index 78b6c45..3206286 100644
--- a/conf/lstu.conf.template
+++ b/conf/lstu.conf.template
@@ -66,12 +66,28 @@
     # optional
     #fixed_domain => 'example.org',
 
+    # choose what database you want to use
+    # valid choices are sqlite and postgresql (all lowercase)
+    # optional, default is sqlite
+    #dbtype => 'sqlite',
+
+    # SQLite ONLY - only used if dbtype is set to sqlite
     # define a path to the SQLite database
     # you can define it relative to lstu directory or set an absolute path
     # remember that it has to be in a directory writable by Lstu user
     # optional, default is lstu.db
     #db_path           => 'lstu.db',
 
+    # PostgreSQL ONLY - only used if dbtype is set to postgresql
+    # these are the credentials to access the PostgreSQL database
+    # mandatory if you choosed postgresql as dbtype
+    #pgdb => {
+    #    database => 'lstu',
+    #    host     => 'localhost',
+    #    #user     => 'DBUSER',
+    #    #pwd      => 'DBPASSWORD'
+    #},
+
     # Rate-limiting for the API
     # After ban_min_strike requests in a second, the IP address will be
     # banned for one hour.
@@ -80,6 +96,14 @@
     # optional, default is 3
     ban_min_strike    => 3,
 
+    # Ban whitelist
+    # You can whitelist IP addresses to prevent you from being banned
+    # Be careful, the IP addresses are compared as string, not as IP addresses
+    # a network range will not work
+    # Example of valid input: ban_whitelist => ['198.51.100.42', '2001:0DB8::42'],¬
+    # optional, default is an empty array
+    #ban_whitelist => [],
+
     # define an URL to the Piwik instance and the ID of a website to track
     # set if you want to track views in Piwik
     # optional, Piwik tracking is disabled by default
diff --git a/conf/lstu.service b/conf/lstu.service
index 8fb354c..12f3aac 100644
--- a/conf/lstu.service
+++ b/conf/lstu.service
@@ -1,6 +1,6 @@
 [Unit]
-Description=URL Shortener
-Documentation=https://git.framasoft.org/luc/lstu
+Description=Shortened URLs service
+Documentation=https://framagit.org/luc/lstu
 Requires=network.target
 After=network.target
 
@@ -10,9 +10,9 @@ User=www-data
 RemainAfterExit=yes
 WorkingDirectory=__FINALPATH__
 PIDFile=__FINALPATH__script/hypnotoad.pid
-ExecStart=/usr/bin/carton exec hypnotoad script/lstu
-ExecStop=/usr/bin/carton exec hypnotoad -s script/lstu
-ExecReload=/usr/bin/carton exec hypnotoad script/lstu
+ExecStart=/usr/local/bin/carton exec hypnotoad script/lstu
+ExecStop=/usr/local/bin/carton exec hypnotoad -s script/lstu
+ExecReload=/usr/local/bin/carton exec hypnotoad script/lstu
 
 [Install]
 WantedBy=multi-user.target
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 22f455b..3e674d7 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,35 +1,21 @@
 location __PATH__ {
-       if ($scheme = http) {
-              rewrite ^ https://$server_name$request_uri? permanent;
-       }
-       location ~ [^/]\.php(/|$) {
-        fastcgi_split_path_info ^(.+?\.php)(/.*)$;
-        fastcgi_pass unix:/var/run/php5-fpm.sock;
-        fastcgi_index index.php;
-        include fastcgi_params;
-        fastcgi_param  REMOTE_USER $remote_user;
-        fastcgi_param  PATH_INFO $fastcgi_path_info;
+    if ($scheme = http) {
+        rewrite ^ https://$server_name$request_uri? permanent;
     }
 
-    # Include SSOWAT user panel.
-    include conf.d/yunohost_panel.conf.inc;
+    #--PRIVATE--# Include SSOWAT user panel.
+    #--PRIVATE--include conf.d/yunohost_panel.conf.inc;
 
-    # This is important for user's privacy !
-    access_log off;
+    access_log /var/log/nginx/lstu.access.log;
     error_log /var/log/nginx/lstu.error.log;
 
-    # This is important ! Make it OK with your Lutim configuration
-    client_max_body_size 40M;
-
     proxy_pass http://127.0.0.1:__PORT__;
 
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-
-    # Lutim reads this header and understands that the current session is actually HTTPS.
-    # Enable it if you run a HTTPS server (in this case, don't forgot to change the listen port $
-    proxy_set_header X-Forwarded-Proto https;
+    proxy_set_header X-Remote-Port $remote_port;
+    proxy_set_header X-Forwarded-Proto $scheme;
 
     # We expect the downsteam servers to redirect to the right hostname, so don't do any rewrite$
     proxy_redirect     off;
diff --git a/manifest.json b/manifest.json
index 9de22bd..b2d6861 100644
--- a/manifest.json
+++ b/manifest.json
@@ -40,23 +40,14 @@
 				"example": "/lstu",
 				"default": "/lstu"
 			},
-			{
-				"name": "admin",
-				"type": "user",
-				"ask": {
-					"en": "Choose the Lutim administrator (must be an existing YunoHost user)",
-					"fr": "Choisissez un administrateur Lutim (doit être un utilisateur YunoHost)"
-				},
-				"example": "john"
-			},
 			{
 				"name": "is_public",
+				"type": "boolean",
 				"ask": {
-					"en": "Uploading images is it public?",
-					"fr": "L'upload des images est-il public ?"
+					"en": "Is it a public application?",
+					"fr": "Est-ce une application publique ?"
 				},
-				"choices": ["Yes", "No"],
-				"default": "No"
+				"default": false
 			}
 		]
 	}
diff --git a/scripts/.fonctions b/scripts/.fonctions
index 2c69f20..d3b7eac 100644
--- a/scripts/.fonctions
+++ b/scripts/.fonctions
@@ -1,55 +1,64 @@
 #!/bin/bash
+# vim:set noexpandtab:
 
-CHECK_VAR () {	# Vérifie que la variable n'est pas vide.
-# $1 = Variable à vérifier
-# $2 = Texte à afficher en cas d'erreur
+ynh_version="2.5"
+
+YNH_VERSION () {	# Returns the version number of the Yunohost moulinette
+	ynh_version=$(sudo yunohost -v | grep "moulinette:" | cut -d' ' -f2 | cut -d'.' -f1,2)
+}
+
+CHECK_VAR () {	# Verifies that the variable is not empty.
+	# $1 = Variable to be checked
+	# $2 = Display text on error
 	test -n "$1" || (echo "$2" >&2 && false)
 }
 
-EXIT_PROPERLY () {	# Provoque l'arrêt du script en cas d'erreur. Et nettoye les résidus.
-	exit_code=$?
-	if [ "$exit_code" -eq 0 ]; then
-			exit 0	# Quitte sans erreur si le script se termine correctement.
-	fi
-	trap '' EXIT
-	set +eu
+EXIT_PROPERLY () {	# Causes the script to stop in the event of an error. And clean the residue.
+	trap '' ERR
 	echo -e "\e[91m \e[1m"	# Shell in light red bold
 	echo -e "!!\n  $app install's script has encountered an error. Installation was cancelled.\n!!" >&2
 
-	if type -t CLEAN_SETUP > /dev/null; then	# Vérifie l'existance de la fonction avant de l'exécuter.
-		CLEAN_SETUP	# Appel la fonction de nettoyage spécifique du script install.
+	if type -t CLEAN_SETUP > /dev/null; then	# Checks the existence of the function before executing it.
+		CLEAN_SETUP	# Call the specific cleanup function of the install script.
 	fi
 
-	# Compense le bug de ssowat qui ne supprime pas l'entrée de l'app en cas d'erreur d'installation.
+	# Compensates the ssowat bug that does not remove the app's input in case of installation error.
 	sudo sed -i "\@\"$domain$path/\":@d" /etc/ssowat/conf.json
 
+	if [ "$ynh_version" = "2.2" ]; then
+		/bin/bash $script_dir/remove
+	fi
+
 	ynh_die
 }
 
 TRAP_ON () {	# Activate signal capture
-	set -eu	# Exit if a command fail, and if a variable is used unset.
-	trap EXIT_PROPERLY EXIT	# Capturing exit signals on shell script
+	trap EXIT_PROPERLY ERR	# Capturing exit signals on error
 }
 
-CHECK_USER () {	# Vérifie la validité de l'user admin
-# $1 = Variable de l'user admin.
+TRAP_OFF () {	# Ignoring signal capture until TRAP_ON
+	trap '' ERR	# Ignoring exit signals
+}
+
+CHECK_USER () {	# Check the validity of the user admin
+	# $1 = User admin variable
 	ynh_user_exists "$1" || (echo "Wrong admin" >&2 && false)
 }
 
-CHECK_PATH () {	# Vérifie la présence du / en début de path. Et son absence à la fin.
-	if [ "${path:0:1}" != "/" ]; then    # Si le premier caractère n'est pas un /
-		path="/$path"    # Ajoute un / en début de path
+CHECK_PATH () {	# Checks / at the beginning of the path. And his absence at the end.
+	if [ "${path:0:1}" != "/" ]; then	# If the first character is not /
+		path="/$path"	# Add / at the beginning of path
 	fi
-	if [ "${path:${#path}-1}" == "/" ] && [ ${#path} -gt 1 ]; then    # Si le dernier caractère est un / et que ce n'est pas le seul caractère.
-		path="${path:0:${#path}-1}"	# Supprime le dernier caractère
+	if [ "${path:${#path}-1}" == "/" ] && [ ${#path} -gt 1 ]; then	# If the last character is a / and it is not the only character.
+		path="${path:0:${#path}-1}"	# Delete last character
 	fi
 }
 
-CHECK_DOMAINPATH () {	# Vérifie la disponibilité du path et du domaine.
+CHECK_DOMAINPATH () {	# Checks the availability of the path and domain.
 	sudo yunohost app checkurl $domain$path -a $app
 }
 
-CHECK_FINALPATH () {	# Vérifie que le dossier de destination n'est pas déjà utilisé.
+CHECK_FINALPATH () {	# Checks that the destination folder is not already in use.
 	final_path=/var/www/$app
 	if [ -e "$final_path" ]
 	then
@@ -58,67 +67,71 @@ CHECK_FINALPATH () {	# Vérifie que le dossier de destination n'est pas déjà u
 	fi
 }
 
-GENERATE_DB () {	# Créer une base de données et un utilisateur dédié au nom de l'app.
-# $1 = Nom de la base de donnée
-	db_user=$1
-	db_user=${db_user//-/_}	# mariadb ne supporte pas les - dans les noms de base de données. Ils sont donc remplacé par des _
-	# Génère un mot de passe aléatoire.
-# 	db_pwd=$(head -n20 /dev/urandom | tr -c -d 'A-Za-z0-9' | head -c20)
-	db_pwd=$(ynh_string_random)
-	CHECK_VAR "$db_pwd" "db_pwd empty"
-	# Utilise '$app' comme nom d'utilisateur et de base de donnée
-	# Initialise la base de donnée et stocke le mot de passe mysql.
-	ynh_mysql_create_db "$db_user" "$db_user" $db_pwd
-	ynh_app_setting_set $app mysqlpwd $db_pwd
+SETUP_SOURCE () {	# Download source, decompress and copu into $final_path
+	src=$(cat ../sources/source_md5 | awk -F' ' {'print $2'})
+	sudo wget -nv -i ../sources/source_url -O $src
+	# Checks the checksum of the downloaded source.
+	# md5sum -c ../sources/source_md5 --status || ynh_die "Corrupt source"
+	# Decompress source
+	if [ "$(echo ${src##*.})" == "tgz" ]; then
+		tar -x -f $src
+	elif [ "$(echo ${src##*.})" == "zip" ]; then
+		unzip -q $src
+	else
+		false	# Unsupported archive format.
+	fi
+	# Copy file source
+	sudo cp -a $(cat ../sources/source_dir)/. "$final_path"
+	# Copy additional file and modified
+	if test -e "../sources/ajouts"; then
+		sudo cp -a ../sources/ajouts/. "$final_path"
+	fi
 }
 
-ADD_SYS_USER () {   # Créer un utilisateur système dédié à l'app
-        if ! ynh_system_user_exists "$app"	# Test l'existence de l'utilisateur
-        then
-            sudo useradd -d /var/www/$app --system --user-group $app --shell /usr/sbin/nologin || (echo "Unable to create $app system account" >&2 && false)
-        fi
+ADD_SYS_USER () {	# Créer un utilisateur système dédié à l'app
+	if ! ynh_system_user_exists "$app"	# Test l'existence de l'utilisateur
+	then
+		sudo useradd -d /var/www/$app --system --user-group $app --shell /usr/sbin/nologin || (echo "Unable to create $app system account" >&2 && false)
+	fi
 }
 
-POOL_FPM () {	# Créer le fichier de configuration du pool php-fpm et le configure.
-	sed -i "s@__NAMETOCHANGE__@$app@g" ../conf/php-fpm.conf
-	sed -i "s@__FINALPATH__@$final_path@g" ../conf/php-fpm.conf
-	sed -i "s@__USER__@$app@g" ../conf/php-fpm.conf
-	finalphpconf=/etc/php5/fpm/pool.d/$app.conf
-	sudo cp ../conf/php-fpm.conf $finalphpconf
-	sudo chown root: $finalphpconf
-	finalphpini=/etc/php5/fpm/conf.d/20-$app.ini
-	sudo cp ../conf/php-fpm.ini $finalphpini
-	sudo chown root: $finalphpini
-	sudo service php5-fpm reload
-}
-
-STORE_MD5_CONFIG () {	# Enregistre la somme de contrôle du fichier de config
-# $1 = Nom du fichier de conf pour le stockage dans settings.yml
-# $2 = Nom complet et chemin du fichier de conf.
+STORE_MD5_CONFIG () {	# Saves the checksum of the config file
+	# $1 = Name of the conf file for storage in settings.yml
+	# $2 = Full name and path of the conf file.
 	ynh_app_setting_set $app $1_file_md5 $(sudo md5sum "$2" | cut -d' ' -f1)
 }
 
-CHECK_MD5_CONFIG () {	# Créé un backup du fichier de config si il a été modifié.
-# $1 = Nom du fichier de conf pour le stockage dans settings.yml
-# $2 = Nom complet et chemin du fichier de conf.
+CHECK_MD5_CONFIG () {	# Created a backup of the config file if it was changed.
+	# $1 = Name of the conf file for storage in settings.yml
+	# $2 = Full name and path of the conf file.onf.
 	if [ "$(ynh_app_setting_get $app $1_file_md5)" != $(sudo md5sum "$2" | cut -d' ' -f1) ]; then
 		sudo cp -a "$2" "$2.backup.$(date '+%d.%m.%y_%Hh%M,%Ss')"	# Si le fichier de config a été modifié, créer un backup.
 	fi
 }
 
-FIND_PORT () {	# Cherche un port libre.
-# $1 = Numéro de port pour débuter la recherche.
-	port=$1
-	while ! sudo yunohost app checkport $port ; do
-		port=$((port+1))
-	done
-	CHECK_VAR "$port" "port empty"
+FIND_PORT () {	# Search free port
+	YNH_VERSION
+	if [ $ynh_version == "2.5" ]; then
+		# $1 = Port number to start the search.
+		port=$1
+		while ! sudo yunohost app checkport $port ; do
+			port=$((port+1))
+		done
+		CHECK_VAR "$port" "port empty"
+	else
+		# $1 = Port number to start the search.
+		port=$1
+		if [ "$(sudo yunohost tools port-available $port)" = "True" ]; then
+			port=$((port+1))
+		fi
+		CHECK_VAR "$port" "port empty"
+	fi
 }
 
 
 ### REMOVE SCRIPT
 
-REMOVE_NGINX_CONF () {	# Suppression de la configuration nginx
+REMOVE_NGINX_CONF () {	# Delete nginx configuration
 	if [ -e "/etc/nginx/conf.d/$domain.d/$app.conf" ]; then	# Delete nginx config
 		echo "Delete nginx config"
 		sudo rm "/etc/nginx/conf.d/$domain.d/$app.conf"
@@ -126,39 +139,27 @@ REMOVE_NGINX_CONF () {	# Suppression de la configuration nginx
 	fi
 }
 
-REMOVE_FPM_CONF () {	# Suppression de la configuration du pool php-fpm
-	if [ -e "/etc/php5/fpm/pool.d/$app.conf" ]; then	# Delete fpm config
-		echo "Delete fpm config"
-		sudo rm "/etc/php5/fpm/pool.d/$app.conf"
-	fi
-	if [ -e "/etc/php5/fpm/conf.d/20-$app.ini" ]; then	# Delete php config
-		echo "Delete php config"
-		sudo rm "/etc/php5/fpm/conf.d/20-$app.ini"
-	fi
-	sudo service php5-fpm reload
-}
-
-REMOVE_LOGROTATE_CONF () {	# Suppression de la configuration de logrotate
+REMOVE_LOGROTATE_CONF () {	# Delete logrotate configuration
 	if [ -e "/etc/logrotate.d/$app" ]; then
 		echo "Delete logrotate config"
 		sudo rm "/etc/logrotate.d/$app"
 	fi
 }
 
-SECURE_REMOVE () {      # Suppression de dossier avec vérification des variables
-	chaine="$1"	# L'argument doit être donné entre quotes simple '', pour éviter d'interpréter les variables.
+SECURE_REMOVE () {	  # Deleting a folder with variable verification
+	chaine="$1"	# The argument must be given between simple quotes '', to avoid interpreting the variables.
 	no_var=0
-	while (echo "$chaine" | grep -q '\$')	# Boucle tant qu'il y a des $ dans la chaine
+	while (echo "$chaine" | grep -q '\$')	# Loop as long as there are $ in the string
 	do
 		no_var=1
-		global_var=$(echo "$chaine" | cut -d '$' -f 2)	# Isole la première variable trouvée.
-		only_var=\$$(expr "$global_var" : '\([A-Za-z0-9_]*\)')	# Isole complètement la variable en ajoutant le $ au début et en gardant uniquement le nom de la variable. Se débarrasse surtout du / et d'un éventuel chemin derrière.
-		real_var=$(eval "echo ${only_var}")		# `eval "echo ${var}` permet d'interpréter une variable contenue dans une variable.
+		global_var=$(echo "$chaine" | cut -d '$' -f 2)	# Isole the first variable found.
+		only_var=\$$(expr "$global_var" : '\([A-Za-z0-9_]*\)')	# Isole completely the variable by adding the $ at the beginning and keeping only the name of the variable. Mostly gets rid of / and a possible path behind.
+		real_var=$(eval "echo ${only_var}")		# `eval "echo ${var}` Allows to interpret a variable contained in a variable.
 		if test -z "$real_var" || [ "$real_var" = "/" ]; then
 			echo "Variable $only_var is empty, suppression of $chaine cancelled." >&2
 			return 1
 		fi
-		chaine=$(echo "$chaine" | sed "s@$only_var@$real_var@")	# remplace la variable par sa valeur dans la chaine.
+		chaine=$(echo "$chaine" | sed "s@$only_var@$real_var@")	# Replaces variable with its value in the string.
 	done
 	if [ "$no_var" -eq 1 ]
 	then
@@ -173,20 +174,57 @@ SECURE_REMOVE () {      # Suppression de dossier avec vérification des variable
 	fi
 }
 
-REMOVE_BDD () {	# Suppression de la base de donnée et de l'utilisateur associé.
-# $1 = Nom de la base de donnée
-	# Utilise '$app' comme nom d'utilisateur et de base de donnée
-	db_user=$1
-	if mysqlshow -u root -p$(sudo cat $MYSQL_ROOT_PWD_FILE) | grep -q "^| $db_user"; then
-		echo "Delete db"
-		ynh_mysql_drop_db $db_user
-		ynh_mysql_drop_user $db_user
+REMOVE_SYS_USER () {	# Delete user 
+	if ynh_system_user_exists "$app"	# Test user exist
+	then
+		sudo userdel $app
 	fi
 }
 
-REMOVE_SYS_USER () {   # Supprime l'utilisateur système dédié à l'app
-    if ynh_system_user_exists "$app"	# Test l'existence de l'utilisateur
-    then
-    	sudo userdel $app
-    fi
+#=================================================
+# BACKUP
+#=================================================
+
+# Manage a fail of the script
+#
+# Print a warning to inform that the script was failed
+# Execute the ynh_clean_setup function if used in the app script
+#
+# usage of ynh_clean_setup function
+# This function provide a way to clean some residual of installation that not managed by remove script.
+# To use it, simply add in your script:
+# ynh_clean_setup () {
+#		instructions...
+# }
+# This function is optionnal.
+#
+# Usage: ynh_exit_properly is used only by the helper ynh_check_error.
+# You must not use it directly.
+ynh_exit_properly () {
+	exit_code=$?
+	if [ "$exit_code" -eq 0 ]; then
+			ynh_die	# Exit without error if the script ended correctly
+	fi
+
+	trap '' EXIT	# Ignore new exit signals
+	set +eu	# Do not exit anymore if a command fail or if a variable is empty
+
+	echo -e "!!\n  $app's script has encountered an error. Its execution was cancelled.\n!!" >&2
+
+	if type -t ynh_clean_setup > /dev/null; then	# Check if the function exist in the app script.
+		ynh_clean_setup	# Call the function to do specific cleaning for the app.
+	fi
+
+	ynh_die	# Exit with error status
+}
+
+# Exit if an error occurs during the execution of the script.
+#
+# Stop immediatly the execution if an error occured or if a empty variable is used.
+# The execution of the script is derivate to ynh_exit_properly function before exit.
+#
+# Usage: ynh_abort_if_errors
+ynh_abort_if_errors () {
+	set -eu	# Exit if a command fail, and if a variable is used unset.
+	trap ynh_exit_properly EXIT	# Capturing exit signals on shell script
 }
diff --git a/scripts/backup b/scripts/backup
new file mode 100644
index 0000000..deaac93
--- /dev/null
+++ b/scripts/backup
@@ -0,0 +1,27 @@
+#!/bin/bash
+# vim:set noexpandtab:
+
+# Exit on command errors and treat unset variables as an error
+set -eu
+
+# Source app helpers
+source /usr/share/yunohost/helpers
+
+# Get multi-instances specific variables
+app=$YNH_APP_INSTANCE_NAME
+
+# Retrieve app settings
+domain=$(ynh_app_setting_get "$app" domain)
+
+# Copy the app files
+final_path="/var/www/${app}"
+ynh_backup "${final_path}" "sources" 1
+
+# Copy the nginx conf files
+ynh_backup "/etc/nginx/conf.d/${domain}.d/${app}.conf" "nginx.conf"
+
+# Copy the lstu conf file
+ynh_backup "${final_path}/lstu.conf" "lstu.conf"
+ynh_backup "/etc/systemd/system/lstu.service" "systemd_lstu.service"
+ynh_backup "/etc/logrotate.d/${app}" "logrotate_lstu"
+ynh_backup "/var/log/${app}/production.log" "production.log"
diff --git a/scripts/install b/scripts/install
index f19edbb..1ac6557 100644
--- a/scripts/install
+++ b/scripts/install
@@ -1,85 +1,91 @@
 #!/bin/bash
+# vim:set noexpandtab:
 
-source .fonctions	# Charge les fonctions génériques habituellement utilisées dans le script
+# Exit on command errors and treat unset variables as an error
+set -eu
+
+source .fonctions	# Loads the generic functions usually used in the script
+source /usr/share/yunohost/helpers # Source app helpers
 
 CLEAN_SETUP () {
-# Nettoyage des résidus d'installation non pris en charge par le script remove.
-# Pas de nettoyage supplémentaire nécessaire ici...
+	# Clean installation residues that are not supported by the remove script.
+	# Clean hosts
 	echo ""
 }
-TRAP_ON	# Active trap pour arrêter le script si une erreur est détectée.
+TRAP_ON	# Active trap to stop the script if an error is detected.
 
 # Retrieve arguments
 domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
-admin=$YNH_APP_ARG_ADMIN
 is_public=$YNH_APP_ARG_IS_PUBLIC
 
 app=$YNH_APP_INSTANCE_NAME
 
-# Source app helpers
-source /usr/share/yunohost/helpers
-
 script_dir=$PWD
 
-# Vérifie que les variables ne sont pas vides.
+# Check variables are not empty
 CHECK_VAR "$app" "app name not set"
 CHECK_VAR "$script_dir" "script_dir not set"
 
+CHECK_PATH	# Check and fix path syntax
+CHECK_DOMAINPATH	# Check and fix domain disponibility
 
-CHECK_USER "$admin"	# Vérifie la validité de l'user admin
+CHECK_FINALPATH	# Check final path
 
-CHECK_PATH	# Vérifie et corrige la syntaxe du path.
-CHECK_DOMAINPATH	# Vérifie la disponibilité du path et du domaine.
-
-CHECK_FINALPATH	# Vérifie que le dossier de destination n'est pas déjà utilisé.
-
-# Modifie le domaine pour qu'il passe dans une regex
+# Check domain with regex
 domain_regex=$(echo "$domain" | sed 's@-@.@g')
 CHECK_VAR "$domain_regex" "domain_regex empty"
 
-FIND_PORT 8080	# Cherche un port libre.
+FIND_PORT 8096	# Check port availability
 
-# Enregistre les infos dans la config YunoHost
-ynh_app_setting_set $app admin $admin
+# Save app settings
 ynh_app_setting_set $app domain $domain
 ynh_app_setting_set $app is_public $is_public
 ynh_app_setting_set $app port $port
 
+# Install dependencies
+ynh_package_update
+ynh_package_install build-essential libssl-dev libpq-dev
 
-# Créer le repertoire de destination et stocke son emplacement.
+# Copy files to the right place
+sudo mkdir "${final_path}"
 ynh_app_setting_set $app final_path $final_path
 
-sudo git clone https://framagit.org/luc/lstu.git $final_path	# Télécharge la source, décompresse et copie dans $final_path
+# Get source
+SETUP_SOURCE
 
-# Copie le fichier de config nginx
+# Copy it to Nginx conf directory
 sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
 
+if [ $is_public -eq 1 ];
+then
+	sudo sed -i "s@#--PRIVATE--@@g" /etc/nginx/conf.d/$domain.d/$app.conf
+fi
 
-# Installation de perlmagick, interface perl pour imagemagick et de carton, gestionnaire de dépendances perl
-sudo apt-get update
-sudo apt-get install carton perlmagick -qy
+## Copy and fix variable into lstu config
+sudo cp ../conf/lstu.conf.template "${final_path}/lstu.conf"
+sudo sed -i "s@__DOMAIN__@$domain@g" "${final_path}/lstu.conf"
+sudo sed -i "s@__PATH__@$path@g" "${final_path}/lstu.conf"
+sudo sed -i "s@__PORT__@$port@g" "${final_path}/lstu.conf"
 
-## Copie et configuration du fichier de conf.
-sudo cp ../conf/lstu.conf.template "$final_path/lstu.conf"
-sudo sed -i "s@__DOMAIN__@$domain@g" "$final_path/lstu.conf"
-sudo sed -i "s@__PATH__@$path@g" "$final_path/lstu.conf"
-sudo sed -i "s@__PORT__@$port@g" "$final_path/lstu.conf"
+secret=$(ynh_string_random 24)
+CHECK_VAR "$secret" "secret empty"
+sudo sed -i "s@__SECRET__@$secret@g" "${final_path}/lstu.conf"
+STORE_MD5_CONFIG "lstu.conf" "${final_path}/lstu.conf"
 
+# Install systemd script
+sudo cp ../conf/lstu.service /etc/systemd/system/lstu.service
+sudo chown root: /etc/systemd/system/lstu.service
+sudo sed -i "s@__FINALPATH__@$final_path/@g" /etc/systemd/system/lstu.service
 
-codename=$(lsb_release -a 2>/dev/null | grep Codename | cut -f 2)
-CHECK_VAR "$codename" "codename empty"
-ynh_app_setting_set $app codename $codename
-sudo cp "$final_path/utilities/lstu.default" /etc/default/lstu
+# Install logrotate
+sudo cp ../conf/logrotate /etc/logrotate.d/$app
+sed -i "s@__FINALPATH__@$final_path@g" /etc/logrotate.d/$app
 
-	sudo cp ../conf/lstu.service /etc/systemd/system/lstu.service
-	sudo chown root: /etc/systemd/system/lstu.service
-	sudo sed -i "s@__FINALPATH__@$final_path/@g" /etc/systemd/system/lstu.service
-	## Démarrage auto du service
-	sudo systemctl enable lstu.service
+# Install Carton
+echo yes | sudo cpan Carton
 
-
-# Installation de lstu via carton
+# Install lstu's dependencies via carton
 sudo mkdir -p /var/log/$app/
 cd $final_path
 sudo carton install 2>&1 | sudo tee -a "/var/log/$app/setup_carton.log"
@@ -90,12 +96,12 @@ sudo sed -i "s@__PORT__@$port@g" /etc/nginx/conf.d/$domain.d/$app.conf
 
 # Make app public or private
 ynh_app_setting_set $app skipped_uris "/"
-if [ "$is_public" = "No" ];
-then	# Si l'app est privée, seul le visionnage des images reste public
+if [ $is_public -eq 0 ];
+then	# If the app is private, only the shortened URLs are publics
 	if [ "$path" == "/" ]; then
-	    path=""	# Si path correspond à la racine, supprime le / pour éviter une erreur de la regex.
+		path=""
 	fi
-	ynh_app_setting_set $app protected_regex "$domain_regex$path/stats$","$domain_regex$path/manifest.webapp$","$domain_regex$path/$","$domain_regex$path/d/.*$","$domain_regex$path/m/.*$"
+	ynh_app_setting_set $app protected_regex "$domain_regex$path/login$","$domain_regex$path/logout$","$domain_regex$path/api$","$domain_regex$path/extensions$","$domain_regex$path/stats$","$domain_regex$path/d/.*$","$domain_regex$path/a$","$domain_regex$path/$"
 fi
 
 # Making log symbolic link to /var/log
@@ -103,20 +109,27 @@ sudo touch /var/log/$app/production.log
 sudo chown www-data: /var/log/$app/production.log
 sudo ln -s /var/log/$app/production.log "$final_path/log/production.log"
 
-# Configure les droits d'accès au fichiers
+# Configure owner
 sudo chown -R www-data: $final_path
 
-# Start lutim
-sudo service lstu start
+# Start lstu
+sudo systemctl daemon-reload
+sudo systemctl start lstu.service
+sudo systemctl enable lstu.service
+
 # Set right permissions on new files created at first start
 sudo chown -R www-data: "$final_path"
 
-
-# Add lutim as a service
+# Add lstu as a service
 sudo yunohost service add lstu -l $final_path/log/production.log
 
+if [ $is_public -eq 0 ];
+then
+	# Delete public access
+	ynh_app_setting_delete $app unprotected_uris
+	# Regenerate SSOwat's configuration
+	sudo yunohost app ssowatconf
+fi
 
-# Recharge la configuration Nginx
+# Reload Nginx
 sudo service nginx reload
-# Régénère la configuration de SSOwat
-sudo yunohost app ssowatconf
diff --git a/scripts/remove b/scripts/remove
index 5b7737c..0217a54 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,45 +1,47 @@
 #!/bin/bash
+# vim:set noexpandtab:
 
-source .fonctions	# Charge les fonctions génériques habituellement utilisées dans le script
+# Exit on command errors and treat unset variables as an error
+set -u
 
-# Récupère les infos de l'application.
+source .fonctions	# Loads the generic functions usually used in the script
+source /usr/share/yunohost/helpers # Source app helpers
+
+# Get multi-instances specific variables
 app=$YNH_APP_INSTANCE_NAME
 
-# Source app helpers
-source /usr/share/yunohost/helpers
-
 domain=$(ynh_app_setting_get $app domain)
 
-# Arrêt du service
-if [ -e "/etc/init.d/lutim" ]; then
-	echo "Delete init.d script"
-	sudo service lstu stop
-	sudo rm "/etc/init.d/lstu"
-	sudo rm "/etc/default/lstu"
-	sudo update-rc.d -f lstu remove
-fi
+# Stop lstu service
 if [ -e "/etc/systemd/system/lstu.service" ]; then
 	echo "Delete systemd script"
-	sudo service lstu stop
-	sudo rm "/etc/systemd/system/lstu.service"
+	sudo systemctl stop lstu.service
 	sudo systemctl disable lstu.service
+	sudo rm "/etc/systemd/system/lstu.service"
+	systemctl daemon-reload
 fi
 
-# Retire le service du monitoring de Yunohost.
-if sudo yunohost service status | grep -q lutim	# Test l'existence du service dans Yunohost
+# Remove monitoring service Yunohost.
+if sudo yunohost service status | grep -q lstu	# Test the existence of the service in Yunohost
 then
 	echo "Remove lstu service"
 	sudo yunohost service remove lstu
 fi
 
-SECURE_REMOVE '/var/www/$app'	# Suppression du dossier de l'application
+SECURE_REMOVE '/var/www/$app'	# Delete directory application
 
-REMOVE_NGINX_CONF	# Suppression de la configuration nginx
+REMOVE_NGINX_CONF	# Delete nginx configuration
 
 
-SECURE_REMOVE '/var/log/$app/'	# Suppression des log
+SECURE_REMOVE '/var/log/$app/'	# Delete log
 
-# Régénère la configuration de SSOwat
+REMOVE_LOGROTATE_CONF	# Delete logrotate configuration
+
+ynh_package_remove build-essential	|| echo "build-essential already uninstalled"
+ynh_package_remove libssl-dev		|| echo "libssl-dev already uninstalled"
+ynh_package_remove libpq-dev		|| echo "libpq-dev already uninstalled"
+
+# Reload SSOwat configuration
 sudo yunohost app ssowatconf
 
 echo -e "\e[0m"	# Restore normal color
diff --git a/scripts/restore b/scripts/restore
new file mode 100644
index 0000000..fc7d554
--- /dev/null
+++ b/scripts/restore
@@ -0,0 +1,97 @@
+#!/bin/bash
+# vim:set noexpandtab:
+# This restore script is adapted to Yunohost >=2.4
+
+# Exit on command errors and treat unset variables as an error
+set -eu
+
+# Source app helpers
+source /usr/share/yunohost/helpers
+
+# The parameter $app is the id of the app instance ex: ynhexample__2
+app=$YNH_APP_INSTANCE_NAME
+
+# Get old parameter of the app
+domain=$(ynh_app_setting_get $app domain)
+path=$(ynh_app_setting_get $app path)
+is_public=$(ynh_app_setting_get $app is_public)
+
+ynh_package_update
+ynh_package_install build-essential libssl-dev libpq-dev
+echo yes | sudo cpan Carton
+
+# Check domain/path availability
+sudo yunohost app checkurl "${domain}${path}" -a "${app}" \
+    || ynh_die "Path not available: ${domain}${path}"
+
+# Check $final_path
+final_path="/var/www/${app}"
+if [ -d "${final_path}" ]; then
+	ynh_die "There is already a directory: ${final_path}"
+fi
+
+# Check configuration files nginx
+nginx_conf="/etc/nginx/conf.d/${domain}.d/${app}.conf"
+if [ -f "${nginx_conf}" ]; then
+	ynh_die "The NGINX configuration already exists at '${nginx_conf}'. You should safely delete it before restoring this app."
+fi
+
+# Check configuration files lstu
+lstu_conf="${final_path}/${app}.conf"
+if [ -f "${lstu_conf}" ]; then
+	ynh_die "The LSTU CONF configuration already exists at '${lstu_conf}'. You should safely delete it before restoring this app."
+fi
+
+lstu_systemd="/etc/systemd/system/${app}.service"
+if [ -f "${lstu_systemd}" ]; then
+	ynh_die "The LSTU SYSTEMD configuration already exists at '${lstu_systemd}'. You should safely delete it before restoring this app."
+fi
+
+lstu_logrotate="/etc/logrotate.d/${app}"
+if [ -f "${lstu_logrotate}" ]; then
+	ynh_die "The LSTU LOGROTATE configuration already exists at '${lstu_logrotate}'. You should safely delete it before restoring this app."
+fi
+
+lstu_log="/var/log/${app}/production.log"
+if [ -f "${lstu_log}" ]; then
+	ynh_die "The LSTU LOG configuration already exists at '${lstu_log}'. You should safely delete it before restoring this app."
+fi
+
+ # Restore sources & data
+sudo cp -a ./sources "${final_path}"
+
+# Set permissions
+sudo chown -R www-data: "${final_path}"
+
+# Restore nginx configuration files
+sudo cp -a ./nginx.conf   "${nginx_conf}"
+
+# Restore lstu configuration files
+sudo cp -a ./lstu.conf "${lstu_conf}"
+
+# Restore service
+sudo cp -a ./systemd_lstu.service "${lstu_systemd}"
+
+sudo cp -a ./logrotate_lstu "${lstu_logrotate}"
+
+# Create log production
+sudo mkdir "/var/log/${app}/"
+sudo cp -a ./production.log "${lstu_log}"
+# Delete symbolic link and restore
+sudo rm -fr "${final_path}/log/production.log"
+sudo ln -s "/var/log/${app}/production.log" "${final_path}/log/production.log"
+
+# Reload lstu service
+sudo systemctl daemon-reload
+sudo systemctl start lstu.service
+sudo systemctl enable lstu.service
+
+# Set ssowat config
+if [ $is_public -eq 0 ];
+then
+	ynh_app_setting_delete $app skipped_uris
+fi
+
+# Reload services
+sudo systemctl reload nginx
+sudo yunohost app ssowatconf
diff --git a/scripts/upgrade b/scripts/upgrade
new file mode 100644
index 0000000..45a279b
--- /dev/null
+++ b/scripts/upgrade
@@ -0,0 +1,132 @@
+#!/bin/bash
+# vim:set noexpandtab:
+
+set -eu
+
+#=================================================
+# GENERIC STARTING
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source .fonctions
+source /usr/share/yunohost/helpers
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+
+app=$YNH_APP_INSTANCE_NAME
+
+domain=$(ynh_app_setting_get $app domain)
+path=$(ynh_app_setting_get $app path)
+is_public=$(ynh_app_setting_get $app is_public)
+port=$(ynh_app_setting_get $app port)
+final_path=$(ynh_app_setting_get $app final_path)
+secret=$(ynh_app_setting_get $app secret)
+
+#=================================================
+# FIX OLD THINGS
+#=================================================
+
+if [ "$is_public" = "Yes" ]; then
+	ynh_app_setting_set $app is_public 1	# Fixe is_public en booléen
+	is_public=1
+elif [ "$is_public" = "No" ]; then
+	ynh_app_setting_set $app is_public 0
+	is_public=0
+fi
+
+if [ "${#final_path}" -eq 0 ]
+then	# Si final_path n'est pas renseigné dans la config yunohost, cas d'ancien script, code final_path en dur
+	final_path=/var/www/$app
+fi
+
+CHECK_PATH	# Checks and corrects the syntax of the path.
+
+# Get source
+SETUP_SOURCE
+
+#=================================================
+# NGINX CONFIGURATION
+#=================================================
+
+# Copy Nginx configuration file
+sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
+# Modify Nginx configuration file
+sudo sed -i "s@__PATH__@$path@g" /etc/nginx/conf.d/$domain.d/$app.conf
+sudo sed -i "s@__PORT__@$port@g" /etc/nginx/conf.d/$domain.d/$app.conf
+
+if [ $is_public -eq 1 ];
+then
+	sudo sed -i "s@#--PRIVATE--@@g" /etc/nginx/conf.d/$domain.d/$app.conf
+fi
+
+#=================================================
+# SPECIFIC UPGRADE
+#=================================================
+# SETUP LSTU
+#=================================================
+
+## Copie et configuration du fichier de conf.
+CHECK_MD5_CONFIG "lstu.conf" "$final_path/lstu.conf"	# Créé un backup du fichier de config si il a été modifié.
+sudo cp ../conf/lstu.conf.template "$final_path/lstu.conf"
+sudo sed -i "s@__DOMAIN__@$domain@g" "$final_path/lstu.conf"
+sudo sed -i "s@__PATH__@$path@g" "$final_path/lstu.conf"
+sudo sed -i "s@__PORT__@$port@g" "$final_path/lstu.conf"
+sudo sed -i "s@__SECRET__@$secret@g" "${final_path}/lstu.conf"
+STORE_MD5_CONFIG "lstu.conf" "$final_path/lstu.conf"	# Réenregistre la somme de contrôle du fichier de config
+
+#=================================================
+# SETUP SYSTEMD
+#=================================================
+
+# Mise en place du script systemd
+sudo systemctl stop $app
+sudo cp ../conf/lstu.service /etc/systemd/system/$app.service
+sudo chown root: /etc/systemd/system/$app.service
+sudo sed -i "s@__FINALPATH__@$final_path/@g" /etc/systemd/system/$app.service
+##
+sudo systemctl daemon-reload
+## Démarrage auto du service
+sudo systemctl enable $app
+
+#=================================================
+# UPDATE LSTU'S DEPENDENCIES WITH CARTON
+#=================================================
+
+pushd $final_path	# cd avec une stack pour revenir en arrière
+echo yes | sudo carton install 2>&1 | sudo tee -a "/var/log/$app/setup_carton.log"
+popd	# Revient au dossier courant avant pushd
+
+#=================================================
+# SECURING FILES AND DIRECTORIES
+#=================================================
+
+sudo chown -R www-data: $final_path
+
+#=================================================
+# RESTART LSTU
+#=================================================
+
+sudo systemctl start lstu.service
+
+#=================================================
+# SETUP SSOWAT
+#=================================================
+
+ynh_app_setting_set $app skipped_uris "/"
+if [ $is_public -eq 0 ];
+then	# If the app is private, only the shortened URLs are publics
+	if [ "$path" == "/" ]; then
+		path=""
+	fi
+	ynh_app_setting_set $app protected_regex "$domain_regex$path/login$","$domain_regex$path/logout$","$domain_regex$path/api$","$domain_regex$path/extensions$","$domain_regex$path/stats$","$domain_regex$path/d/.*$","$domain_regex$path/a$","$domain_regex$path/$"
+fi
+
+#=================================================
+# RELOAD NGINX
+#=================================================
+
+sudo systemctl reload nginx
+sudo yunohost app ssowatconf