diff --git a/scripts/change_url b/scripts/change_url
index f0964a6..5726416 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -16,7 +16,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
-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" --line_match="Server closing"
 
 #=================================================
 # MODIFY URL IN NGINX CONF
@@ -28,9 +28,15 @@ ynh_change_url_nginx_config
 #=================================================
 # SPECIFIC MODIFICATIONS
 #=================================================
-# ...
+# Retarget worker nodes
 #=================================================
 
+set +o nounset
+source "${install_dir}/venv/bin/activate"
+set -o nounset
+ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH SYNC_TOKENSERVER__DATABASE_URL="mysql://$db_user:${db_pwd}@localhost/$db_name_tokenserver" $install_dir/venv/bin/python tools/tokenserver/remove_node.py "https://$old_domain$old_path"
+ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH SYNC_TOKENSERVER__DATABASE_URL="mysql://$db_user:${db_pwd}@localhost/$db_name_tokenserver" $install_dir/venv/bin/python tools/tokenserver/add_node.py "https://$new_domain$new_path" 10
+
 #=================================================
 # GENERIC FINALISATION
 #=================================================
@@ -38,7 +44,7 @@ ynh_change_url_nginx_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" --line_match="Server running on http://127.0.0.1"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/install b/scripts/install
index 42cfea4..1fa8dbd 100644
--- a/scripts/install
+++ b/scripts/install
@@ -19,7 +19,7 @@ ynh_app_setting_set --app=$app --key=db_name_tokenserver --value=$db_name_tokens
 #=================================================
 # INSTALL DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Installing dependencies..." --weight=10
+ynh_script_progression --message="Installing dependencies..." --weight=5
 
 ynh_exec_warn_less ynh_exec_as $app RUSTUP_HOME="$install_dir"/.rustup CARGO_HOME="$install_dir"/.cargo bash -c 'curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -q -y'
 export PATH="$install_dir/.cargo/bin:$PATH"
@@ -107,8 +107,6 @@ yunohost service add $app --description="Firefox Sync Server (Rust)" --log="/var
 # Use logrotate to manage application logfile(s)
 ynh_use_logrotate
 
-# Create a dedicated Fail2Ban config
-#ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex=""
 #=================================================
 # APP INITIAL CONFIGURATION
 #=================================================
@@ -132,7 +130,8 @@ chown $app:$app "$install_dir/config.toml"
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
 # Start a systemd service
-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" --line_match="Server running on http://127.0.0.1"
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 1e262c8..83013fc 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -56,10 +56,11 @@ ynh_restore_file --origin_path="/etc/logrotate.d/$app"
 #=================================================
 ynh_script_progression --message="Reloading NGINX web server and $app's service..." --weight=1
 
-# Typically you only have either $app or php-fpm but not both at the same time...
-ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
 ynh_systemd_action --service_name=nginx --action=reload
 
+# Typically you only have either $app or php-fpm but not both at the same time...
+ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log" --line_match="Server running on http://127.0.0.1"
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 1c17fd3..a6f0eb5 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,8 +1,5 @@
 #!/bin/bash
-#### App file generated with YoloGen, the Yunohost app generator, version 0.6.5.
-# This is the tutorial version of the app.
-# It contains extra commands to explain what should be done in case you want to adjust some part of the script.
-# Once you are done, you may remove them.
+
 #=================================================
 # GENERIC START
 #=================================================
@@ -12,57 +9,26 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
-# Settings are automatically loaded as bash variables
-# in every app script context, therefore typically these will exist:
-# - $domain
-# - $path
-# - $language
-# - $install_dir
-# - $port
-# ...
-
-# In the context of upgrade,
-# - resources are automatically provisioned / updated / deleted (depending on existing resources)
-# - a safety backup is automatically created by the core and will be restored if the upgrade fails
-
-### This helper will compare the version of the currently installed app and the version of the upstream package.
-### $upgrade_type can have 2 different values
-### - UPGRADE_APP if the upstream app version has changed
-### - UPGRADE_PACKAGE if only the YunoHost package has changed
-### ynh_check_app_version_changed will stop the upgrade if the app is up to date.
-### UPGRADE_APP should be used to upgrade the core app only if there's an upgrade to do.
 upgrade_type=$(ynh_check_app_version_changed)
 
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-#ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
-
-#
-# N.B. : the followings setting migrations snippets are provided as *EXAMPLES*
-# of what you may want to do in some cases (e.g. a setting was not defined on
-# some legacy installs and you therefore want to initiaze stuff during upgrade)
-#
-
-# If db_name doesn't exist, create it
-#if [ -z "$db_name" ]; then
-#	db_name=$(ynh_sanitize_dbid --db_name=$app)
-#	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-#fi
-
-# If install_dir doesn't exist, create it
-#if [ -z "$install_dir" ]; then
-#	install_dir=/var/www/$app
-#	ynh_app_setting_set --app=$app --key=install_dir --value=$install_dir
-#fi
-#=================================================
 # STOP SYSTEMD SERVICE
 #=================================================
 ynh_script_progression --message="Stopping a systemd service..." --weight=1
 
-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" --line_match="Server closing"
+
+#=================================================
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..." --weight=5
+
+ynh_exec_warn_less ynh_exec_as $app RUSTUP_HOME="$install_dir"/.rustup CARGO_HOME="$install_dir"/.cargo bash -c 'curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -q -y'
+export PATH="$install_dir/.cargo/bin:$PATH"
+ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH cargo install diesel_cli --no-default-features --features 'mysql'
+
 #=================================================
 # "REBUILD" THE APP (DEPLOY NEW SOURCES, RERUN NPM BUILD...)
 #=================================================
@@ -82,6 +48,43 @@ fi
 # ownership to all files such as after the ynh_setup_source step
 chown -R $app:www-data "$install_dir"
 
+#=================================================
+# BUILD
+#=================================================
+
+ynh_script_progression --message="Building the sources (it will take some time)..." --weight=10
+
+ynh_exec_as $app python -m venv "${install_dir}/venv"
+(
+	set +o nounset
+	source "${install_dir}/venv/bin/activate"
+	set -o nounset
+
+	ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install --upgrade pip
+	ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install --upgrade setuptools
+    pushd $install_dir/build
+        ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install -r requirements.txt
+		ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install -r tools/tokenserver/requirements.txt
+        ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH cargo install --path ./syncserver --locked --root $install_dir  --no-default-features --features=syncstorage-db/mysql
+
+		ynh_script_progression --message="Seeding the databases..."
+		# syncstorage db
+		diesel --database-url "mysql://$db_user:${db_pwd}@localhost/$db_name" migration --migration-dir syncstorage-mysql/migrations run
+
+		# tokenserver db
+		diesel --database-url "mysql://$db_user:${db_pwd}@localhost/$db_name_tokenserver" migration --migration-dir tokenserver-db/migrations run
+
+		ynh_mysql_execute_as_root --sql="INSERT INTO services (id, service, pattern) VALUES (1, 'sync-1.5', '{node}/1.5/{uid}')" --database="$db_name_tokenserver";
+
+		ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH SYNC_TOKENSERVER__DATABASE_URL="mysql://$db_user:${db_pwd}@localhost/$db_name_tokenserver" $install_dir/venv/bin/python tools/tokenserver/add_node.py "https://$domain$path_url" 10
+    popd
+)
+
+ynh_secure_remove --file="$install_dir/.cargo"
+ynh_secure_remove --file="$install_dir/.rustup"
+ynh_secure_remove --file="$install_dir/.cache"
+ynh_secure_remove --file="$install_dir/build"
+
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS
 #=================================================
@@ -93,9 +96,10 @@ ynh_add_nginx_config
 ynh_add_systemd_config
 
 yunohost service add $app --description="Firefox Sync Server (Rust)" --log="/var/log/$app/$app.log"
-ynh_use_logrotate --non-append
-# Create a dedicated Fail2Ban config
-ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex=""
+
+# Use logrotate to manage application logfile(s)
+ynh_use_logrotate
+
 #=================================================
 # RECONFIGURE THE APP (UPDATE CONF, APPLY MIGRATIONS...)
 #=================================================
@@ -103,30 +107,21 @@ ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failreg
 #=================================================
 ynh_script_progression --message="Updating a configuration file..." --weight=1
 
-### Same as during install
-###
-### The file will automatically be backed-up if it's found to be manually modified (because
-### ynh_add_config keeps track of the file's checksum)
-ynh_add_config --template="sync.ini" --destination="$install_dir/sync.ini"
+ynh_add_config --template="config.toml" --destination="$install_dir/config.toml"
 
 # FIXME: this should be handled by the core in the future
 # You may need to use chmod 600 instead of 400,
 # for example if the app is expected to be able to modify its own config
-chmod 400 "$install_dir/some_config_file"
-chown $app:$app "$install_dir/some_config_file"
+chmod 400 "$install_dir/config.toml"
+chown $app:$app "$install_dir/config.toml"
 
-### For more complex cases where you want to replace stuff using regexes,
-### you shoud rely on ynh_replace_string (which is basically a wrapper for sed)
-### When doing so, you also need to manually call ynh_store_file_checksum
-###
-### ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$install_dir/some_config_file"
-### ynh_store_file_checksum --file="$install_dir/some_config_file"
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
 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" --line_match="Server running on http://127.0.0.1"
+
 #=================================================
 # END OF SCRIPT
 #=================================================