diff --git a/manifest.toml b/manifest.toml
index dee3bc3..e8f9d09 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -1,3 +1,5 @@
+#:schema https://raw.githubusercontent.com/YunoHost/apps/master/schemas/manifest.v2.schema.json
+
 packaging_format = 2
 
 id = "minidlna"
diff --git a/scripts/_common.sh b/scripts/_common.sh
index b02fb07..e97e4ad 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -8,13 +8,12 @@
 # PACKAGE CHECK BYPASSING...
 #=================================================
 
-IS_PACKAGE_CHECK () {
-	if [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]
-	then
-		return 0
-	else
-		return 1
-	fi
+IS_PACKAGE_CHECK() {
+    if [ "${PACKAGE_CHECK_EXEC:-0}" -eq 1 ]; then
+        return 0
+    else
+        return 1
+    fi
 }
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index 70bc14a..8c01510 100644
--- a/scripts/install
+++ b/scripts/install
@@ -14,8 +14,8 @@ source /usr/share/yunohost/helpers
 #=================================================
 ynh_script_progression --message="Storing installation settings..." --weight=2
 
-ynh_app_setting_set --app=$app --key=overwrite_settings --value=1
-ynh_app_setting_set --app=$app --key=admin_mail_html --value=1
+ynh_app_setting_set --app="$app" --key=overwrite_settings --value=1
+ynh_app_setting_set --app="$app" --key=admin_mail_html --value=1
 
 #=================================================
 # STANDARD MODIFICATIONS
@@ -44,9 +44,8 @@ ynh_script_progression --message="Increasing inotify's limits..." --weight=1
 # Increase the maximum number of files inotify can monitor.
 cp -a ../conf/90-inotify_minidlna.conf /etc/sysctl.d/
 # Then, reload the kernel configuration.
-if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
-then
-	sysctl -p /etc/sysctl.d/90-inotify_minidlna.conf
+if ! IS_PACKAGE_CHECK; then   # LXC doesn't allow sysctl to play with kernel options.
+    sysctl -p /etc/sysctl.d/90-inotify_minidlna.conf
 fi
 
 #=================================================
@@ -57,11 +56,11 @@ ynh_script_progression --message="Configuring MiniDLNA..." --weight=2
 ynh_replace_string --match_string="^#*media_dir=.*" --replace_string="media_dir=/home/yunohost.multimedia/share" --target_file=/etc/minidlna.conf
 ynh_replace_string --match_string="^#*port=.*" --replace_string="port=$port" --target_file=/etc/minidlna.conf
 friendly_name="Yunohost DLNA"
-ynh_app_setting_set --app=$app --key=friendly_name --value="$friendly_name"
+ynh_app_setting_set --app="$app" --key=friendly_name --value="$friendly_name"
 ynh_replace_string --match_string="^#*friendly_name=.*" --replace_string="friendly_name=$friendly_name" --target_file=/etc/minidlna.conf
 root_container="B"
 ynh_replace_string --match_string="^#*root_container=.*" --replace_string="root_container=$root_container" --target_file=/etc/minidlna.conf
-ynh_app_setting_set --app=$app --key=root_container --value="$root_container"
+ynh_app_setting_set --app="$app" --key=root_container --value="$root_container"
 ynh_replace_string --match_string="^#wide_links=.*" --replace_string="wide_links=yes" --target_file=/etc/minidlna.conf
 
 # Calculate and store the config file checksum into the app settings
@@ -72,7 +71,7 @@ ynh_store_file_checksum --file="/etc/minidlna.conf"
 #=================================================
 ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
 
-yunohost service add $app --log="/var/log/$app.log" --needs_exposed_ports="1900"
+yunohost service add "$app" --log="/var/log/$app.log" --needs_exposed_ports="1900"
 
 #=================================================
 # START SYSTEMD SERVICE
@@ -80,7 +79,7 @@ yunohost service add $app --log="/var/log/$app.log" --needs_exposed_ports="1900"
 ynh_script_progression --message="Starting a systemd service..." --weight=4
 
 # Start a systemd service
-ynh_systemd_action --service_name=$app --action="restart" --log_path="/var/log/$app.log"
+ynh_systemd_action --service_name="$app" --action="restart" --log_path="/var/log/$app.log"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/remove b/scripts/remove
index c49e70d..4fb59d4 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -16,10 +16,9 @@ source /usr/share/yunohost/helpers
 #=================================================
 
 # Remove the service from the list of services known by YunoHost (added from `yunohost service add`)
-if ynh_exec_warn_less yunohost service status $app >/dev/null
-then
-	ynh_script_progression --message="Removing $app service integration..."
-	yunohost service remove $app
+if ynh_exec_warn_less yunohost service status $app >/dev/null; then
+    ynh_script_progression --message="Removing $app service integration..."
+    yunohost service remove $app
 fi
 
 #=================================================
@@ -36,12 +35,12 @@ ynh_exec_fully_quiet yunohost firewall disallow UDP 1900
 ynh_script_progression --message="Removing various files..." --weight=1
 
 if [ -e "/etc/sysctl.d/90-inotify_minidlna.conf" ]; then
-	ynh_secure_remove --file="/etc/sysctl.d/90-inotify_minidlna.conf"
-	# Reload the kernel configuration.
-	if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
-	then
-		sysctl -p /etc/sysctl.d/90-inotify_minidlna.conf
-	fi
+    ynh_secure_remove --file="/etc/sysctl.d/90-inotify_minidlna.conf"
+    # Reload the kernel configuration.
+    if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
+    then
+        sysctl -p /etc/sysctl.d/90-inotify_minidlna.conf
+    fi
 fi
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 1e42e58..c8370de 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -33,9 +33,8 @@ ynh_multimedia_build_main_dir
 ynh_script_progression --message="Restoring various files..." --weight=1
 
 ynh_restore_file --origin_path="/etc/sysctl.d/90-inotify_minidlna.conf"
-if ! IS_PACKAGE_CHECK   # LXC doesn't allow sysctl to play with kernel options.
-then
-	sysctl -p /etc/sysctl.d/90-inotify_minidlna.conf
+if ! IS_PACKAGE_CHECK; then   # LXC doesn't allow sysctl to play with kernel options.
+    sysctl -p /etc/sysctl.d/90-inotify_minidlna.conf
 fi
 # Delete the current config of minidlna, in order to replace it by the version from the backup
 ynh_secure_remove --file="/etc/minidlna.conf"
@@ -46,14 +45,14 @@ ynh_restore_file --origin_path="/etc/minidlna.conf"
 #=================================================
 ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
 
-yunohost service add $app --log="/var/log/$app.log" --needs_exposed_ports="1900"
+yunohost service add "$app" --log="/var/log/$app.log" --needs_exposed_ports="1900"
 
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
-ynh_systemd_action --service_name=$app --action=restart --log_path="/var/log/$app.log"
+ynh_systemd_action --service_name="$app" --action=restart --log_path="/var/log/$app.log"
 
 #=================================================
 # END OF SCRIPT
diff --git a/tests.toml b/tests.toml
index d64ef3c..953b195 100644
--- a/tests.toml
+++ b/tests.toml
@@ -1,3 +1,5 @@
+#:schema https://raw.githubusercontent.com/YunoHost/apps/master/schemas/tests.v1.schema.json
+
 test_format = 1.0
 
 [default]