diff --git a/README.md b/README.md
index 1fdec00..35f9ae2 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/in
 
 [Movim](https://movim.eu) is a decentralized social network, written in PHP and HTML5 and based on the XMPP standard protocol.
 
-**Shipped version:** 0.18
+**Shipped version:** 0.19
 
 ## Screenshots
 
diff --git a/README_fr.md b/README_fr.md
index ea6ea5d..2130fd2 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -12,7 +12,7 @@ Si vous n'avez pas YunoHost, consultez [le guide](https://yunohost.org/#/install
 
 [Movim](https://movim.eu) est un réseau social décentralisé, écrit en PHP et HTML5 et basé sur le protocole standard XMPP.
 
-**Version incluse :** 0.18
+**Version incluse :** 0.19
 
 ## Captures d'écran
 
diff --git a/check_process b/check_process
index 7a65692..db9a3ce 100644
--- a/check_process
+++ b/check_process
@@ -1,8 +1,6 @@
 # See here for more informations
 # https://github.com/YunoHost/package_check#syntax-check_process-file
 
-# Move this file from check_process.default to check_process when you have filled it.
-
 ;; Test complet
 	; Manifest
 		domain="domain.tld"	(DOMAIN)
@@ -22,12 +20,12 @@
 		upgrade=1
 		backup_restore=1
 		multi_instance=0
-		port_already_use=1
+		port_already_use=0
 		change_url=0
 ;;; Options
 Email=
 Notification=none
 ;;; Upgrade options
-	; commit=CommitHash
-		name=Name and date of the commit.
+	; commit=
+		name=
 		manifest_arg=domain=DOMAIN&path=PATH&admin=USER&language=fr&is_public=1&password=phrasedepasse&port=9537&
diff --git a/conf/app.src b/conf/app.src
index a704253..cf436e0 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/movim/movim/archive/v0.18.tar.gz
-SOURCE_SUM=5d49757ee8c70c8b1a527a26279de76b9be5c938064aae7ed65cb123fe4290ca
+SOURCE_URL=https://github.com/movim/movim/archive/v0.19.tar.gz
+SOURCE_SUM=df98b5b0df6fd6bfa5fda88f387ac017bc7bcead42c462745296604f3e0ee501
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 7f054e0..839822e 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -36,6 +36,7 @@ location __PATH__/ {
 		proxy_send_timeout 14400s;
 		# (14400s is 4h)
 	}
+	
 	# Include SSOWAT user panel.
 	include conf.d/yunohost_panel.conf.inc;
 }
diff --git a/conf/systemd.service b/conf/systemd.service
index 85b6e6c..73e3095 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -6,7 +6,7 @@ After=nginx.service network.target local-fs.target postgresql.service
 Type=simple
 User=__APP__
 WorkingDirectory=__FINALPATH__
-ExecStart=/usr/bin/php__PHP_VERSION__ daemon.php start --interface=127.0.0.1 --url=https://__DOMAIN____PATH__/ --port=__PORT__
+ExecStart=/usr/bin/php__PHPVERSION__ daemon.php start --interface=127.0.0.1 --url=https://__DOMAIN____PATH__/ --port=__PORT__
 StandardOutput=syslog
 SyslogIdentifier=__APP__
 PIDFile=/run/movim.pid
diff --git a/manifest.json b/manifest.json
index ffa3a9b..42d847d 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Web-based cross-platform XMPP client",
         "fr": "Client XMPP multiplateforme basé sur le Web"
     },
-    "version": "0.18~ynh5",
+    "version": "0.19~ynh1",
     "url": "https://movim.eu",
     "license": "AGPL-3.0-or-later",
     "maintainer": {
@@ -14,7 +14,7 @@
         "email": ""
     },
     "requirements": {
-        "yunohost": ">= 3.8.1"
+        "yunohost": ">= 4.0.0"
     },
     "multi_instance": false,
     "services": [
diff --git a/pull_request_template.md b/pull_request_template.md
index 077ba48..6c28fc5 100644
--- a/pull_request_template.md
+++ b/pull_request_template.md
@@ -13,6 +13,4 @@
 
 ## Package_check results
 ---
-*If you have access to [App Continuous Integration for packagers](https://yunohost.org/#/packaging_apps_ci) you can provide a link to the package_check results like below, replacing '-NUM-' in this link by the PR number and USERNAME by your username on the ci-apps-dev. Or you provide a screenshot or a pastebin of the results*
-
-[![Build Status](https://ci-apps-dev.yunohost.org/jenkins/job/movim_ynh%20PR-NUM-%20(USERNAME)/badge/icon)](https://ci-apps-dev.yunohost.org/jenkins/job/movim_ynh%20PR-NUM-%20(USERNAME)/)  
+* An automatic package_check will be launch at https://ci-apps-dev.yunohost.org/, when you add a specific comment to your Pull Request: "!testme", "!gogogadgetoci" or "By the power of systemd, I invoke The Great App CI to test this Pull Request!"*
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 83966a7..58ebdd4 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -9,7 +9,7 @@ pkg_dependencies="postgresql postgresql-contrib apt-transport-https"
 
 YNH_PHP_VERSION="7.3"
 
-extra_php_dependencies="php${YNH_PHP_VERSION}-fpm php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-imagick php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-pgsql php${YNH_PHP_VERSION}-xml"
+extra_php_dependencies="php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-imagick php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-pgsql php${YNH_PHP_VERSION}-xml"
 
 #=================================================
 # PERSONAL HELPERS
@@ -23,15 +23,3 @@ extra_php_dependencies="php${YNH_PHP_VERSION}-fpm php${YNH_PHP_VERSION}-curl php
 # FUTURE OFFICIAL HELPERS
 #=================================================
 
-# Execute a command as another user
-# usage: ynh_exec_as USER COMMAND [ARG ...]
-ynh_exec_as() {
-  local USER=$1
-  shift 1
-
-  if [[ $USER = $(whoami) ]]; then
-    eval "$@"
-  else
-    sudo -u "$USER" "$@"
-  fi
-}
diff --git a/scripts/backup b/scripts/backup
index 947603f..aca5c31 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -29,7 +29,6 @@ app=$YNH_APP_INSTANCE_NAME
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index 1ff4524..2c1c9e7 100644
--- a/scripts/install
+++ b/scripts/install
@@ -48,7 +48,6 @@ ynh_script_progression --message="Storing installation settings..." --weight=2
 ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
 ynh_app_setting_set --app=$app --key=admin --value=$admin
-ynh_app_setting_set --app=$app --key=is_public --value=$is_public
 
 #=================================================
 # STANDARD MODIFICATIONS
@@ -76,13 +75,9 @@ ynh_script_progression --message="Creating a PostgreSQL database..." --weight=2
 
 db_name=$(ynh_sanitize_dbid --db_name=$app)
 db_user=$db_name
-db_pwd=$(ynh_string_random --length=30)
-
 ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-ynh_app_setting_set --app=$app --key=db_pwd  --value=$db_pwd
-
 ynh_psql_test_if_first_run
-ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+ynh_psql_setup_db --db_user=$db_name --db_name=$db_name
 
 ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS unaccent;" --database=$db_name
 ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name
@@ -128,16 +123,14 @@ phpversion=$(ynh_app_setting_get --app="$app" --key=phpversion)
 #=================================================
 ynh_script_progression --message="Modifying a config file..." --weight=1
 
-cp ../conf/db.example.inc.php  $final_path/config/db.inc.php
-
-ynh_replace_string --match_string="__DB_PWD__"  --replace_string="$db_pwd"  --target_file="$final_path/config/db.inc.php"
-ynh_replace_string --match_string="__DB_NAME__" --replace_string="$db_name" --target_file="$final_path/config/db.inc.php"
+ynh_add_config --template="../conf/db.example.inc.php" --destination="$final_path/config/db.inc.php"
 
 ynh_store_file_checksum --file="$final_path/config/db.inc.php"
 
 #=================================================
 # Install PHP dependencies using composer
 #=================================================
+ynh_script_progression --message="Configuring Composer..." --weight=1
 
 pushd $final_path
 	export COMPOSER_HOME=$final_path
@@ -148,12 +141,12 @@ popd
 #=================================================
 # SETUP SYSTEMD
 #=================================================
-ynh_script_progression --message="Configuring a systemd service..." --weight=1
+ynh_script_progression --message="Configuring a systemd service..." --weight=12
 
 ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file=../conf/systemd.service
 ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file=../conf/systemd.service
 ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file=../conf/systemd.service
-ynh_replace_string --match_string="__PHP_VERSION__" --replace_string="$phpversion" --target_file=../conf/systemd.service
+ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$phpversion" --target_file=../conf/systemd.service
 
 ynh_add_systemd_config
 
@@ -169,8 +162,8 @@ mkdir -p $cache_dir
 chown -R $app $cache_dir
 
 pushd $final_path
-	ynh_exec_as $app php$phpversion composer.phar $app:migrate --quiet
-	ynh_exec_as $app php$phpversion daemon.php config --username=$admin --password=$password --quiet
+	php$phpversion composer.phar $app:migrate --quiet
+	php$phpversion daemon.php config --username=$admin --password=$password --quiet
 popd
 
 #=================================================
@@ -181,6 +174,7 @@ popd
 
 chown -R $app:www-data $final_path
 chown -R $app $final_path/src/Movim/
+chmod u+rwx $final_path
 
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST
@@ -200,12 +194,12 @@ ynh_systemd_action --service_name=$app --action=start --log_path="systemd" #--li
 #=================================================
 # SETUP SSOWAT
 #=================================================
-ynh_script_progression --message="Configuring SSOwat..." --weight=1
+ynh_script_progression --message="Configuring permissions..." --weight=1
 
 # Make app public if necessary or protect it
 if [ $is_public -eq 1 ]
 then
-	ynh_permission_update --permission "main" --add "visitors"
+	ynh_permission_update --permission="main" --add="visitors"
 fi
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 1e83f6b..9effe72 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -32,7 +32,7 @@ path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
-db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
+db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 24b4872..d54b3be 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -23,7 +23,7 @@ port=$(ynh_app_setting_get --app=$app --key=port)
 is_public=$(ynh_app_setting_get --app=$app --key=is_public)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
+db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 phpversion=$(ynh_app_setting_get --app="$app" --key=phpversion)
 timezone=$(cat /etc/timezone)
 
@@ -59,6 +59,13 @@ if [ -z "$final_path" ]; then
 	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 fi
 
+# Cleaning legacy permissions
+if ynh_legacy_permissions_exists; then
+	ynh_legacy_permissions_delete_all
+
+	ynh_app_setting_delete --app=$app --key=is_public
+fi
+
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
@@ -80,7 +87,7 @@ ynh_abort_if_errors
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..." --weight=23
 
-ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name=$app --action=stop --log_path="/var/log/$app/$app.log"
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
@@ -133,6 +140,7 @@ ynh_add_fpm_config --package="$extra_php_dependencies"
 
 chown -R $app:www-data $final_path
 chown -R $app $final_path/src/Movim/Bootstrap.php
+chmod u+rwx $final_path
 
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST
@@ -144,31 +152,26 @@ yunohost service add $app --description="Responsive web-based XMPP client" --log
 #=================================================
 # INSTALL PHP DEPENDENCIES USING COMPOSER
 #=================================================
+ynh_script_progression --message="Installing Composer..." --weight=1
 
 pushd "$final_path"
 	ynh_exec_warn_less curl -sS https://getcomposer.org/installer | php$phpversion -- --version="1.10.16" --install-dir="$final_path" \
 		&& php$phpversion composer.phar config --global discard-changes true --quiet \
-		&& php$phpversion composer.phar install --no-interaction --quiet
+		&& php$phpversion composer.phar update --no-interaction --quiet \
+		&& php$phpversion composer.phar movim:migrate --quiet
 popd
 
-#=================================================
-# Set-up database
-#=================================================
-ynh_script_progression --message="Configuring database.." --weight=1
-
-pushd $final_path
-	ynh_exec_as $app php$phpversion composer.phar movim:migrate --quiet
-popd
+#&& php$phpversion composer.phar install --no-interaction --quiet \
 
 #=================================================
 # SETUP SYSTEMD
 #=================================================
+ynh_script_progression --message="Upgrading systemd configuration..." --weight=5
 
-# Create a dedicated systemd config
 ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file=../conf/systemd.service
 ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file=../conf/systemd.service
 ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file=../conf/systemd.service
-ynh_replace_string --match_string="__PHP_VERSION__" --replace_string="$phpversion" --target_file=../conf/systemd.service
+ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$phpversion" --target_file=../conf/systemd.service
 
 ynh_add_systemd_config
 
@@ -177,7 +180,7 @@ ynh_add_systemd_config
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name=$app --action=start --log_path="/var/log/$app/$app.log"
 
 #=================================================
 # RELOAD NGINX