diff --git a/conf/config.local.js b/conf/config.local.js
new file mode 100644
index 0000000..0644d96
--- /dev/null
+++ b/conf/config.local.js
@@ -0,0 +1,43 @@
+// You can overwrite the default configuration values set in [config.js] here.
+// There should never be any required changes to this file and you can always
+// simply copy it over when updating to a new version.
+
+let config = window.mumbleWebConfig // eslint-disable-line no-unused-vars
+
+// E.g. changing default address and theme:
+// config.defaults.address = 'voice.example.com'
+// config.defaults.theme = 'MetroMumbleDark'
+
+
+// Which fields to show on the Connect to Server dialog
+// config.connectDialog.address : 'true'
+// config.connectDialog.port : 'true'
+// config.connectDialog.token : 'true'
+// config.connectDialog.username : 'true'
+// config.connectDialog.password : 'true'
+// config.connectDialog.channelName : 'false'
+
+// Default values for user settings
+// You can see your current value by typing `localStorage.getItem('mumble.$setting')` in the web console.
+// config.settings.voiceMode : 'vad' // one of 'cont' (Continuous), 'ptt' (Push-to-Talk), 'vad' (Voice Activity Detection)
+// config.settings.pttKey : 'ctrl + shift'
+// config.settings.vadLevel : '0.3'
+// config.settings.toolbarVertical : 'false'
+// config.settings.showAvatars : 'always' // one of 'always', 'own_channel', 'linked_channel', 'minimal_only', 'never'
+// config.settings.userCountInChannelName : 'false'
+// config.settings.audioBitrate : '40000' // bits per second
+// config.settings.samplesPerPacket : '960'
+
+// Default values (can be changed by passing a query parameter of the same name)
+// Connect Dialog
+// config.defaults.address': window.location.hostname,
+// config.defaults.port : '443'
+// config.defaults.token : ''
+// config.defaults.username': ''
+// config.defaults.password': '',
+// config.defaults.joinDialog : 'false' // replace whole dialog with single "Join Conference" button
+// config.defaults.matrix : 'false' // enable Matrix Widget support (mostly auto-detected; implies 'joinDialog')
+// config.defaults.avatarurl : '' // download and set the user's Mumble avatar to the image at this URL
+
+// General
+// config.defaults.theme : 'MetroMumbleLight'
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 4bf5b18..76ecdb8 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -21,65 +21,3 @@ nodejs_version=12
 #=================================================
 # FUTURE OFFICIAL HELPERS
 #=================================================
-
-# Send an email to inform the administrator
-#
-# usage: ynh_send_readme_to_admin app_message [recipients]
-# | arg: app_message - The message to send to the administrator.
-# | arg: recipients - The recipients of this email. Use spaces to separate multiples recipients. - default: root
-#	example: "root admin@domain"
-#	If you give the name of a YunoHost user, ynh_send_readme_to_admin will find its email adress for you
-#	example: "root admin@domain user1 user2"
-ynh_send_readme_to_admin() {
-	local app_message="${1:-...No specific information...}"
-	local recipients="${2:-root}"
-
-	# Retrieve the email of users
-	find_mails () {
-		local list_mails="$1"
-		local mail
-		local recipients=" "
-		# Read each mail in argument
-		for mail in $list_mails
-		do
-			# Keep root or a real email address as it is
-			if [ "$mail" = "root" ] || echo "$mail" | grep --quiet "@"
-			then
-				recipients="$recipients $mail"
-			else
-				# But replace an user name without a domain after by its email
-				if mail=$(ynh_user_get_info "$mail" "mail" 2> /dev/null)
-				then
-					recipients="$recipients $mail"
-				fi
-			fi
-		done
-		echo "$recipients"
-	}
-	recipients=$(find_mails "$recipients")
-
-	local mail_subject="☁️🆈🅽🅷☁️: \`$app\` was just installed!"
-
-	local mail_message="This is an automated message from your beloved YunoHost server.
-
-Specific information for the application $app.
-
-$app_message
-
----
-Automatic diagnosis data from YunoHost
-
-$(yunohost tools diagnosis | grep -B 100 "services:" | sed '/services:/d')"
-
-	# Define binary to use for mail command
-	if [ -e /usr/bin/bsd-mailx ]
-	then
-		local mail_bin=/usr/bin/bsd-mailx
-	else
-		local mail_bin=/usr/bin/mail.mailutils
-	fi
-
-	# Send the email to the recipients
-	echo "$mail_message" | $mail_bin -a "Content-Type: text/plain; charset=UTF-8" -s "$mail_subject" "$recipients"
-}
-
diff --git a/scripts/install b/scripts/install
index 8ce8a61..5a75620 100644
--- a/scripts/install
+++ b/scripts/install
@@ -93,9 +93,19 @@ chown -R $app:www-data "$final_path"
 #=================================================
 ynh_script_progression --message="Configuring NGINX web server..." --weight=1
 
-# Create a dedicated nginx config
+# Create a dedicated NGINX config
 ynh_add_nginx_config
 
+#=================================================
+# ADD A CONFIGURATION
+#=================================================
+ynh_script_progression --message="Adding a configuration file..." --weight=1
+
+ynh_add_config --template="../conf/config.local.js" --destination="$final_path/dist/config.local.js"
+
+chmod 400 "$final_path/dist/config.local.js"
+chown $app "$final_path/dist/config.local.js"
+
 #=================================================
 # SPECIFIC SETUP
 #=================================================
@@ -126,7 +136,6 @@ ynh_add_systemd_config
 #=================================================
 ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
 
-# Add Mumble as a YunoHost service
 yunohost service add $app --description="Mumble web interface" --log="/var/log/$app/$app.log"
 
 #=================================================
@@ -134,7 +143,7 @@ yunohost service add $app --description="Mumble web interface" --log="/var/log/$
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=3
 
-ynh_systemd_action --service_name=$app --action=restart --log_path="/var/log/$app/$app.log"
+ynh_systemd_action --service_name=$app --action=restart --log_path="systemd"
 
 #=================================================
 # SETUP SSOWAT
@@ -154,27 +163,6 @@ ynh_script_progression --message="Reloading NGINX web server..." --weight=1
 
 ynh_systemd_action --service_name=nginx --action=reload
 
-#=================================================
-# SEND README TO ADMIN
-#=================================================
-
-# message="
-# Port                   : $port
-# Password to join server: $server_password
-# SuperUser Password     : $su_passwd
-# Welcome text           : $welcometext
-# Root channel (your Mumble server name): $registername
-# Final path (where to find your files) : $final_path
-# Mumble configuration file             : $final_path/mumble-server.ini
-
-# Note about config file: this package will regenerate the config file on upgrade.
-# If you changed it manually and upgrade Mumble, you'll find a backup in $final_path.
-
-# Are you facing an issue, want to improve this app or say thank you?
-# Please open a new issue in this project: https://github.com/YunoHost-Apps/mumbleserver_ynh
-# "
-# ynh_send_readme_to_admin "$message"
-
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 05719af..0c935ee 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -93,7 +93,7 @@ systemctl enable "$app.service" --quiet
 #=================================================
 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="systemd"
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/upgrade b/scripts/upgrade
index b99c3d7..fb38f80 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -83,10 +83,10 @@ ynh_system_user_create --username="$app" --home_dir="$final_path"
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-	ynh_script_progression --message="Upgrading source files..." --time --weight=1
+	ynh_script_progression --message="Upgrading source files..." --weight=1
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path"
+	ynh_setup_source --dest_dir="$final_path" --keep="$final_path/dist/config.local.js"
 fi
 
 chmod 750 "$final_path"
@@ -106,8 +106,7 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Upgrading dependencies..." --weight=1
 
-# Install Mumble Debian package via apt
-ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
+ynh_install_app_dependencies $pkg_dependencies
 
 ynh_install_nodejs --nodejs_version=$nodejs_version
 
@@ -134,7 +133,7 @@ yunohost service add $app --description="Mumble web interface" --log="/var/log/$
 #=================================================
 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="systemd"
 
 #=================================================
 # RELOAD NGINX
@@ -143,29 +142,6 @@ ynh_script_progression --message="Reloading NGINX web server..." --weight=2
 
 ynh_systemd_action --service_name=nginx --action=reload
 
-#=================================================
-# SEND README TO ADMIN
-#=================================================
-
-# message="
-# Mumble server was updated!
-
-# Port                   : $port
-# Password to join server: $server_password
-# SuperUser Password     : $su_passwd
-# Welcome text           : $welcometext
-# Root channel (your mumble server name): $registername
-# Final path (where to find your files) : $final_path
-# Mumble configuration file             : $final_path/mumble-server.ini
-
-# Note about config file: this package will regenerate the config file on upgrade.
-# If you changed it manually and upgrade mumble, you'll find a backup in $final_path.
-
-# Are you facing an issue, want to improve this app or say thank you?
-# Please open a new issue in this project: https://github.com/YunoHost-Apps/mumbleserver_ynh
-# "
-# ynh_send_readme_to_admin "$message"
-
 #=================================================
 # END OF SCRIPT
 #=================================================