diff --git a/check_process b/check_process
index 245e252..0f80e58 100644
--- a/check_process
+++ b/check_process
@@ -11,7 +11,7 @@
 		setup_private=1
 		setup_public=1
 		upgrade=1
-		upgrade=1	from_commit=f59da0dcbc1f35f98fbe32001e0a695171328001
+		upgrade=1	from_commit=0bc4b329402773653e4a70adf6a397c5cefea947
 		backup_restore=1
 		multi_instance=0
 		incorrect_path=1
@@ -33,6 +33,6 @@
 Email=
 Notification=none
 ;;; Upgrade options
-	; commit=f59da0dcbc1f35f98fbe32001e0a695171328001
-		name=Fix install and upgrade
+	; commit=0bc4b329402773653e4a70adf6a397c5cefea947
+		name=Fix dependances for stretch, from old_version_for_CI_1 branch
 		manifest_arg=domain=DOMAIN&path=PATH&is_public=1&
diff --git a/conf/nginx.conf b/conf/nginx.conf
index f963f89..f68e6b5 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -4,15 +4,12 @@ location __PATH__ {
 	if ($scheme = http) {
 		rewrite ^ https://$server_name$request_uri? permanent;
 	}
-	try_files $uri @searx;
-}
 
-location @searx {
 	uwsgi_param SCRIPT_NAME '__PATH_NO_ROOT__';
 	include uwsgi_params;
 	uwsgi_modifier1 30;
 	uwsgi_pass unix:///run/uwsgi/app/searx/socket;
-}
 
-# Include SSOWAT user panel.
-include conf.d/yunohost_panel.conf.inc;
+	# Include SSOWAT user panel.
+	include conf.d/yunohost_panel.conf.inc;
+}
diff --git a/conf/searx.ini b/conf/searx.ini
index 8329d22..5b503d4 100644
--- a/conf/searx.ini
+++ b/conf/searx.ini
@@ -13,6 +13,8 @@ chmod-socket = 666
 single-interpreter = true
 master = true
 plugin = python
+lazy-apps = true
+enable-threads = true
 
 # Application base folder
 base = __FINALPATH__
diff --git a/manifest.json b/manifest.json
index 9811956..62e6426 100644
--- a/manifest.json
+++ b/manifest.json
@@ -9,7 +9,7 @@
 	},
 	"version": "0.14.0~ynh1",
 	"url": "https://asciimoo.github.io/searx/",
-	"license": "AGPLv3",
+	"license": "AGPL-3.0-or-later",
 	"maintainer": {
 		"name": "opi",
 		"email": "opi@zeropi.net"
diff --git a/scripts/_common.sh b/scripts/_common.sh
new file mode 100644
index 0000000..7160957
--- /dev/null
+++ b/scripts/_common.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+
+#=================================================
+# EXPERIMENTAL HELPERS
+#=================================================
+
+# Start or restart a service and follow its booting
+#
+# usage: ynh_check_starting "Line to match" [Log file] [Timeout] [Service name]
+#
+# | arg: Line to match - The line to find in the log to attest the service have finished to boot.
+# | arg: Log file - The log file to watch
+# | arg: Timeout - The maximum time to wait before ending the watching. Defaut 300 seconds.
+# | arg: Service name
+# /var/log/$app/$app.log will be used if no other log is defined.
+ynh_check_starting () {
+	local line_to_match="$1"
+	local app_log="${2:-/var/log/$service_name/$service_name.log}"
+	local timeout=${3:-300}
+	local service_name="${4:-$app}"
+
+	ynh_clean_check_starting () {
+		# Stop the execution of tail.
+		kill -s 15 $pid_tail 2>&1
+		ynh_secure_remove "$templog" 2>&1
+	}
+
+	echo "Starting of $service_name" >&2
+	systemctl stop $service_name
+	local templog="$(mktemp)"
+	# Following the starting of the app in its log
+	tail -F -n0 "$app_log" > "$templog" &
+	# Get the PID of the tail command
+	local pid_tail=$!
+	systemctl start $service_name
+
+	local i=0
+	for i in `seq 1 $timeout`
+	do
+		# Read the log until the sentence is found, that means the app finished to start. Or run until the timeout
+		if grep --quiet "$line_to_match" "$templog"
+		then
+			echo "The service $service_name has correctly started." >&2
+			break
+		fi
+		echo -n "." >&2
+		sleep 1
+	done
+	if [ $i -eq $timeout ]
+	then
+		echo "The service $service_name didn't fully started before the timeout." >&2
+	fi
+
+	echo ""
+	ynh_clean_check_starting
+}
diff --git a/scripts/backup b/scripts/backup
index 96afb05..5d586f6 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -2,13 +2,6 @@
 
 #=================================================
 # GENERIC STARTING
-#=================================================
-# MANAGE FAILURE OF THE SCRIPT
-#=================================================
-
-# Exit on command errors and treat unset variables as an error
-set -eu
-
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -21,6 +14,13 @@ set -eu
 # source _common.sh
 source /usr/share/yunohost/helpers
 
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
 #=================================================
 # LOAD SETTINGS
 #=================================================
diff --git a/scripts/install b/scripts/install
index 530ed8e..32f2498 100644
--- a/scripts/install
+++ b/scripts/install
@@ -6,7 +6,7 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-# source _common.sh
+source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -94,7 +94,9 @@ ynh_setup_source "$final_path"
 #=================================================
 
 virtualenv --system-site-packages "$final_path"
-bash -c "source $final_path/bin/activate && pip install -U setuptools && pip install --requirement $final_path/requirements-ynh.txt"
+set +u; source $final_path/bin/activate; set -u
+pip install -U setuptools
+pip install --requirement $final_path/requirements-ynh.txt
 
 #=================================================
 # CONFIGURE SEARX
@@ -138,6 +140,13 @@ systemctl restart uwsgi
 # Ajoute le service au monitoring de Yunohost.
 yunohost service add uwsgi --log "/var/log/uwsgi/app/$app.log"
 
+#=================================================
+# CHECK SEARX STARTING
+#=================================================
+
+# Wait for searx to be fully started
+ynh_check_starting "spawned uWSGI master process" "/var/log/uwsgi/app/$app.log" "300" "uwsgi"
+
 #=================================================
 # GENERIC FINALISATION
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index ca97673..413aa02 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -2,25 +2,20 @@
 
 #=================================================
 # GENERIC STARTING
-#=================================================
-# MANAGE FAILURE OF THE SCRIPT
-#=================================================
-
-# Exit on command errors and treat unset variables as an error
-set -eu
-
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
 
-# if [ ! -e _common.sh ]; then
-# 	# Rapatrie le fichier de fonctions si il n'est pas dans le dossier courant
-# 	cp ../settings/scripts/_common.sh ./_common.sh
-# 	chmod a+rx _common.sh
-# fi
-# source _common.sh
+source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
 #=================================================
 # LOAD SETTINGS
 #=================================================
@@ -59,7 +54,7 @@ ynh_restore_file "$final_path"
 # INSTALL DEPENDENCIES
 #=================================================
 
-ynh_install_app_dependencies libxslt-dev virtualenv python-babel zlib1g-dev libffi-dev libssl-dev python-lxml uwsgi uwsgi-plugin-python
+ynh_install_app_dependencies git build-essential libxslt-dev python-dev python-virtualenv virtualenv python-babel zlib1g-dev libffi-dev libssl-dev python-lxml uwsgi uwsgi-plugin-python
 
 #=================================================
 # RECREATE OF THE DEDICATED USER
@@ -86,8 +81,14 @@ ln -s /etc/uwsgi/apps-available/$app.ini /etc/uwsgi/apps-enabled/$app.ini
 #=================================================
 # GENERIC FINALISATION
 #=================================================
-# RELOAD NGINX AND UWSGI
+# RELOAD NGINX
 #=================================================
 
-systemctl restart uwsgi
 systemctl reload nginx
+
+#=================================================
+# CHECK SEARX STARTING
+#=================================================
+
+# Wait for searx to be fully started
+ynh_check_starting "spawned uWSGI master process" "/var/log/uwsgi/app/$app.log" "300" "uwsgi"
diff --git a/scripts/upgrade b/scripts/upgrade
index d481d50..b71f771 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -6,7 +6,7 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-# source _common.sh
+source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -58,6 +58,12 @@ path_url=$(ynh_normalize_url_path $path_url)
 
 #=================================================
 # STANDARD UPGRADE STEPS
+#=================================================
+# UPGRADE DEPENDENCIES
+#=================================================
+
+ynh_install_app_dependencies git build-essential libxslt-dev python-dev python-virtualenv virtualenv python-babel zlib1g-dev libffi-dev libssl-dev python-lxml uwsgi uwsgi-plugin-python
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -98,7 +104,9 @@ ynh_system_user_create $app
 
 rm -r $final_path/lib/python2.7/site-packages/setuptools $final_path/lib/python2.7/site-packages/setuptools-*
 virtualenv --system-site-packages "$final_path"
-bash -c "source $final_path/bin/activate && pip install -U setuptools && pip install --requirement $final_path/requirements-ynh.txt --upgrade"
+set +u; source $final_path/bin/activate; set -u
+pip install -U setuptools
+pip install --requirement $final_path/requirements-ynh.txt --upgrade
 
 #=================================================
 # CONFIGURE SEARX
@@ -134,7 +142,13 @@ chown $app: --recursive "$final_path"
 cp ../conf/searx.ini /etc/uwsgi/apps-available/$app.ini
 ynh_replace_string "__APP__" "$app" /etc/uwsgi/apps-available/$app.ini
 ynh_replace_string "__FINALPATH__" "$final_path" /etc/uwsgi/apps-available/$app.ini
-systemctl restart uwsgi
+
+#=================================================
+# CHECK SEARX STARTING
+#=================================================
+
+# Wait for searx to be fully started
+ynh_check_starting "spawned uWSGI master process" "/var/log/uwsgi/app/$app.log" "300" "uwsgi"
 
 #=================================================
 # SETUP SSOWAT