diff --git a/scripts/_common.sh b/scripts/_common.sh
index fc8a07f..d355291 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -25,100 +25,100 @@ YNH_MONGO_VERSION=${YNH_MONGO_VERSION:-$YNH_DEFAULT_MONGO_VERSION}
 # example: ynh_mongo_exec --command="db.getMongo().getDBNames().indexOf(\"wekan\")"
 #
 # usage: ynh_mongo_exec [--user=user] [--password=password] [--authenticationdatabase=authenticationdatabase] [--database=database] [--host=host] [--port=port] --command="command" [--eval]
-# | arg: -u, --user=						- The user name to connect as
-# | arg: -p, --password=					- The user password
-# | arg: -d, --authenticationdatabase=		- The authenticationdatabase to connect to
-# | arg: -d, --database=					- The database to connect to
-# | arg: -h, --host=						- The host to connect to
-# | arg: -P, --port=						- The port to connect to
-# | arg: -c, --command=						- The command to evaluate
-# | arg: -e, --eval							- Evaluate instead of execute the command.
+# | arg: -u, --user=                        - The user name to connect as
+# | arg: -p, --password=                    - The user password
+# | arg: -d, --authenticationdatabase=      - The authenticationdatabase to connect to
+# | arg: -d, --database=                    - The database to connect to
+# | arg: -h, --host=                        - The host to connect to
+# | arg: -P, --port=                        - The port to connect to
+# | arg: -c, --command=                     - The command to evaluate
+# | arg: -e, --eval                         - Evaluate instead of execute the command.
 #
 #
 ynh_mongo_exec() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=upadhPce
-	local -A args_array=( [u]=user= [p]=password= [a]=authenticationdatabase= [d]=database= [h]=host= [P]=port= [c]=command= [e]=eval )
-	local user
-	local password
-	local authenticationdatabase
-	local database
-	local host
-	local port
-	local command
-	local eval
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-	user="${user:-}"
-	password="${password:-}"
-	authenticationdatabase="${authenticationdatabase:-}"
-	database="${database:-}"
-	host="${host:-}"
-	port="${port:-}"
-	eval=${eval:-0}
+    # Declare an array to define the options of this helper.
+    local legacy_args=upadhPce
+    local -A args_array=( [u]=user= [p]=password= [a]=authenticationdatabase= [d]=database= [h]=host= [P]=port= [c]=command= [e]=eval )
+    local user
+    local password
+    local authenticationdatabase
+    local database
+    local host
+    local port
+    local command
+    local eval
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    user="${user:-}"
+    password="${password:-}"
+    authenticationdatabase="${authenticationdatabase:-}"
+    database="${database:-}"
+    host="${host:-}"
+    port="${port:-}"
+    eval=${eval:-0}
 
-	# If user is provided
-	if [ -n "$user" ]
-	then
-		user="--username=$user"
+    # If user is provided
+    if [ -n "$user" ]
+    then
+        user="--username=$user"
 
-		# If password is provided
-		if [ -n "$password" ]
-		then
-			password="--password=$password"
-		fi
+        # If password is provided
+        if [ -n "$password" ]
+        then
+            password="--password=$password"
+        fi
 
-		# If authenticationdatabase is provided
-		if [ -n "$authenticationdatabase" ]
-		then
-			authenticationdatabase="--authenticationDatabase=$authenticationdatabase"
-		else
-			authenticationdatabase="--authenticationDatabase=admin"
-		fi
-	else
-		password=""
-		authenticationdatabase=""
-	fi
+        # If authenticationdatabase is provided
+        if [ -n "$authenticationdatabase" ]
+        then
+            authenticationdatabase="--authenticationDatabase=$authenticationdatabase"
+        else
+            authenticationdatabase="--authenticationDatabase=admin"
+        fi
+    else
+        password=""
+        authenticationdatabase=""
+    fi
 
-	# If host is provided
-	if [ -n "$host" ]
-	then
-		host="--host=$host"
-	fi
+    # If host is provided
+    if [ -n "$host" ]
+    then
+        host="--host=$host"
+    fi
 
-	# If port is provided
-	if [ -n "$port" ]
-	then
-		port="--port=$port"
-	fi
+    # If port is provided
+    if [ -n "$port" ]
+    then
+        port="--port=$port"
+    fi
 
-	# If eval is not provided
-	if [ $eval -eq 0 ]
-	then
-		# If database is provided
-		if [ -n "$database" ]
-		then
-			database="use $database"
-		else
-			database=""
-		fi
+    # If eval is not provided
+    if [ $eval -eq 0 ]
+    then
+        # If database is provided
+        if [ -n "$database" ]
+        then
+            database="use $database"
+        else
+            database=""
+        fi
 
-		mongosh --quiet --username $user --password $password --authenticationDatabase $authenticationdatabase --host $host --port $port <<EOF
+        mongo --quiet $user $password $authenticationdatabase $host $port <<EOF
 $database
 ${command}
 quit()
 EOF
-	else
-		# If database is provided
-		if [ -n "$database" ]
-		then
-			database="$database"
-		else
-			database=""
-		fi
+    else
+        # If database is provided
+        if [ -n "$database" ]
+        then
+            database="$database"
+        else
+            database=""
+        fi
 
-		mongosh --quiet $database --username $user --password $password --authenticationDatabase $authenticationdatabase --host $host --port $port --eval="$command"
-	fi
+        mongo --quiet $database $user $password $authenticationdatabase $host $port --eval="$command"
+    fi
 }
 
 # Drop a database
@@ -129,18 +129,18 @@ EOF
 # consider using ynh_mongo_remove_db instead.
 #
 # usage: ynh_mongo_drop_db --database=database
-# | arg: -d, --database=	- The database name to drop
+# | arg: -d, --database=    - The database name to drop
 #
 #
 ynh_mongo_drop_db() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=d
-	local -A args_array=( [d]=database= )
-	local database
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=( [d]=database= )
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	ynh_mongo_exec --database="$database" --command='db.runCommand({dropDatabase: 1})'
+    ynh_mongo_exec --database="$database" --command='db.runCommand({dropDatabase: 1})'
 }
 
 # Dump a database
@@ -148,19 +148,19 @@ ynh_mongo_drop_db() {
 # example: ynh_mongo_dump_db --database=wekan > ./dump.bson
 #
 # usage: ynh_mongo_dump_db --database=database
-# | arg: -d, --database=	- The database name to dump
+# | arg: -d, --database=    - The database name to dump
 # | ret: the mongodump output
 #
 #
 ynh_mongo_dump_db() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=d
-	local -A args_array=( [d]=database= )
-	local database
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=( [d]=database= )
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	mongodump --quiet --db="$database" --archive
+    mongodump --quiet --db="$database" --archive
 }
 
 # Create a user
@@ -168,49 +168,49 @@ ynh_mongo_dump_db() {
 # [internal]
 #
 # usage: ynh_mongo_create_user --db_user=user --db_pwd=pwd --db_name=name
-# | arg: -u, --db_user=		- The user name to create
-# | arg: -p, --db_pwd=		- The password to identify user by
-# | arg: -n, --db_name=		- Name of the database to grant privilegies
+# | arg: -u, --db_user=     - The user name to create
+# | arg: -p, --db_pwd=      - The password to identify user by
+# | arg: -n, --db_name=     - Name of the database to grant privilegies
 #
 #
 ynh_mongo_create_user() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=unp
-	local -A args_array=( [u]=db_user= [n]=db_name= [p]=db_pwd= )
-	local db_user
-	local db_name
-	local db_pwd
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=unp
+    local -A args_array=( [u]=db_user= [n]=db_name= [p]=db_pwd= )
+    local db_user
+    local db_name
+    local db_pwd
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	# Create the user and set the user as admin of the db
-	ynh_mongo_exec --database="$db_name" --command='db.createUser( { user: "'${db_user}'", pwd: "'${db_pwd}'", roles: [ { role: "readWrite", db: "'${db_name}'" } ] } );'
+    # Create the user and set the user as admin of the db
+    ynh_mongo_exec --database="$db_name" --command='db.createUser( { user: "'${db_user}'", pwd: "'${db_pwd}'", roles: [ { role: "readWrite", db: "'${db_name}'" } ] } );'
 
-	# Add clustermonitoring rights
-	ynh_mongo_exec --database="$db_name" --command='db.grantRolesToUser("'${db_user}'",[{ role: "clusterMonitor", db: "admin" }]);'
+    # Add clustermonitoring rights
+    ynh_mongo_exec --database="$db_name" --command='db.grantRolesToUser("'${db_user}'",[{ role: "clusterMonitor", db: "admin" }]);'
 }
 
 # Check if a mongo database exists
 #
 # usage: ynh_mongo_database_exists --database=database
-# | arg: -d, --database=		- The database for which to check existence
+# | arg: -d, --database=        - The database for which to check existence
 # | exit: Return 1 if the database doesn't exist, 0 otherwise
 #
 #
 ynh_mongo_database_exists() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=d
-	local -A args_array=([d]=database=)
-	local database
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=([d]=database=)
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	if [ $(ynh_mongo_exec --command='db.getMongo().getDBNames().indexOf("'${database}'")' --eval) -lt 0 ]
-	then
-		return 1
-	else
-		return 0
-	fi
+    if [ $(ynh_mongo_exec --command='db.getMongo().getDBNames().indexOf("'${database}'")' --eval) -lt 0 ]
+    then
+        return 1
+    else
+        return 0
+    fi
 }
 
 # Restore a database
@@ -218,18 +218,18 @@ ynh_mongo_database_exists() {
 # example: ynh_mongo_restore_db --database=wekan < ./dump.bson
 #
 # usage: ynh_mongo_restore_db --database=database
-# | arg: -d, --database=	- The database name to restore
+# | arg: -d, --database=    - The database name to restore
 #
 #
 ynh_mongo_restore_db() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=d
-	local -A args_array=( [d]=database= )
-	local database
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=( [d]=database= )
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	mongorestore --quiet --db="$database" --archive
+    mongorestore --quiet --db="$database" --archive
 }
 
 # Drop a user
@@ -237,123 +237,121 @@ ynh_mongo_restore_db() {
 # [internal]
 #
 # usage: ynh_mongo_drop_user --db_user=user --db_name=name
-# | arg: -u, --db_user=		- The user to drop
-# | arg: -n, --db_name=		- Name of the database
+# | arg: -u, --db_user=     - The user to drop
+# | arg: -n, --db_name=     - Name of the database
 #
 #
 ynh_mongo_drop_user() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=un
-	local -A args_array=( [u]=db_user= [n]=db_name= )
-	local db_user
-	local db_name
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=un
+    local -A args_array=( [u]=db_user= [n]=db_name= )
+    local db_user
+    local db_name
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	ynh_mongo_exec --database="$db_name" --command='db.dropUser("'$db_user'", {w: "majority", wtimeout: 5000})'
+    ynh_mongo_exec --database="$db_name" --command='db.dropUser("'$db_user'", {w: "majority", wtimeout: 5000})'
 }
 
 # Create a database, an user and its password. Then store the password in the app's config
 #
 # usage: ynh_mongo_setup_db --db_user=user --db_name=name [--db_pwd=pwd]
-# | arg: -u, --db_user=		- Owner of the database
-# | arg: -n, --db_name=		- Name of the database
-# | arg: -p, --db_pwd=		- Password of the database. If not provided, a password will be generated
+# | arg: -u, --db_user=     - Owner of the database
+# | arg: -n, --db_name=     - Name of the database
+# | arg: -p, --db_pwd=      - Password of the database. If not provided, a password will be generated
 #
 # After executing this helper, the password of the created database will be available in $db_pwd
 # It will also be stored as "mongopwd" into the app settings.
 #
 #
 ynh_mongo_setup_db() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=unp
-	local -A args_array=( [u]=db_user= [n]=db_name= [p]=db_pwd= )
-	local db_user
-	local db_name
-	db_pwd=""
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=unp
+    local -A args_array=( [u]=db_user= [n]=db_name= [p]=db_pwd= )
+    local db_user
+    local db_name
+    db_pwd=""
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	local new_db_pwd=$(ynh_string_random) # Generate a random password
-	# If $db_pwd is not provided, use new_db_pwd instead for db_pwd
-	db_pwd="${db_pwd:-$new_db_pwd}"
+    local new_db_pwd=$(ynh_string_random) # Generate a random password
+    # If $db_pwd is not provided, use new_db_pwd instead for db_pwd
+    db_pwd="${db_pwd:-$new_db_pwd}"
 
-	# Create the user and grant access to the database
-	ynh_mongo_create_user --db_user="$db_user" --db_pwd="$db_pwd" --db_name="$db_name"
+    # Create the user and grant access to the database
+    ynh_mongo_create_user --db_user="$db_user" --db_pwd="$db_pwd" --db_name="$db_name"
 
-	# Store the password in the app's config
-	ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
+    # Store the password in the app's config
+    ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
 }
 
 # Remove a database if it exists, and the associated user
 #
 # usage: ynh_mongo_remove_db --db_user=user --db_name=name
-# | arg: -u, --db_user=		- Owner of the database
-# | arg: -n, --db_name=		- Name of the database
+# | arg: -u, --db_user=     - Owner of the database
+# | arg: -n, --db_name=     - Name of the database
 #
 #
 ynh_mongo_remove_db() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=un
-	local -A args_array=( [u]=db_user= [n]=db_name= )
-	local db_user
-	local db_name
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
+    # Declare an array to define the options of this helper.
+    local legacy_args=un
+    local -A args_array=( [u]=db_user= [n]=db_name= )
+    local db_user
+    local db_name
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
 
-	if ynh_mongo_database_exists --database=$db_name; then  # Check if the database exists
-		ynh_mongo_drop_db --database=$db_name  # Remove the database
-	else
-		ynh_print_warn --message="Database $db_name not found"
-	fi
+    if ynh_mongo_database_exists --database=$db_name; then  # Check if the database exists
+        ynh_mongo_drop_db --database=$db_name  # Remove the database
+    else
+        ynh_print_warn --message="Database $db_name not found"
+    fi
 
-	# Remove mongo user if it exists
-	ynh_mongo_drop_user --db_user=$db_user --db_name=$db_name
+    # Remove mongo user if it exists
+    ynh_mongo_drop_user --db_user=$db_user --db_name=$db_name
 }
 
 # Install MongoDB and integrate MongoDB service in YunoHost
 #
 # usage: ynh_install_mongo [--mongo_version=mongo_version]
-# | arg: -m, --mongo_version=		- Version of MongoDB to install
+# | arg: -m, --mongo_version=       - Version of MongoDB to install
 #
 #
 ynh_install_mongo() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=m
-	local -A args_array=([m]=mongo_version=)
-	local mongo_version
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-	mongo_version="${mongo_version:-$YNH_MONGO_VERSION}"
+    # Declare an array to define the options of this helper.
+    local legacy_args=m
+    local -A args_array=([m]=mongo_version=)
+    local mongo_version
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    mongo_version="${mongo_version:-$YNH_MONGO_VERSION}"
 
-	ynh_print_info --message="Installing MongoDB Community Edition ..."
-	local mongo_debian_release=$(ynh_get_debian_release)
+    ynh_print_info --message="Installing MongoDB Community Edition..."
+    local mongo_debian_release=bullseye #$(ynh_get_debian_release)
 
-	if [[ $(cat /proc/cpuinfo) != *"avx"* && "$mongo_version" != "4.4" ]]; then
-    ynh_print_warn --message="Installing Mongo 4.4 as $mongo_version is not compatible with your cpu (see https://docs.mongodb.com/manual/administration/production-notes/#x86_64)."
+  if [[ $(cat /proc/cpuinfo) != *"avx"* && "$mongo_version" != "4.4" ]]; then
+    ynh_print_warn --message="Installing Mongo 4.4 as $mongo_version is not compatible with your CPU (see https://docs.mongodb.com/manual/administration/production-notes/#x86_64)."
     mongo_version="4.4"
   fi
   if [[ "$mongo_version" == "4.4" && "$mongo_debian_release" != "buster" ]]; then
-    ynh_print_warn --message="Switched to buster install as Mongo 4.4 is not compatible with $mongo_debian_release."
+    ynh_print_warn --message="Switched to Buster install as Mongo 4.4 is not compatible with $mongo_debian_release."
     mongo_debian_release=buster
   fi
 
-	ynh_install_extra_app_dependencies \
-		--repo="deb https://repo.mongodb.org/apt/debian $mongo_debian_release/mongodb-org/$mongo_version main" \
-		--package="mongodb-org mongodb-org-server mongodb-org-tools mongodb-mongosh" \
-		--key="https://www.mongodb.org/static/pgp/server-$mongo_version.asc"
-	mongodb_servicename=mongod
+    ynh_install_extra_app_dependencies --repo="deb http://repo.mongodb.org/apt/debian $mongo_debian_release/mongodb-org/$mongo_version main" --package="mongodb-org-server mongodb-org-shell mongodb-database-tools" --key="https://www.mongodb.org/static/pgp/server-$mongo_version.asc"
+    mongodb_servicename=mongod
 
-	# Make sure MongoDB is started and enabled
-	systemctl enable $mongodb_servicename --quiet
-	systemctl daemon-reload --quiet
-	ynh_systemd_action --service_name=$mongodb_servicename --action=restart --line_match="aiting for connections" --log_path="/var/log/mongodb/$mongodb_servicename.log"
+    # Make sure MongoDB is started and enabled
+    systemctl enable $mongodb_servicename --quiet
+    systemctl daemon-reload --quiet
 
-	# Integrate MongoDB service in YunoHost
-	yunohost service add $mongodb_servicename --description="MongoDB daemon" --log="/var/log/mongodb/$mongodb_servicename.log"
+    ynh_systemd_action --service_name=$mongodb_servicename --action=restart --line_match="aiting for connections" --log_path="/var/log/mongodb/$mongodb_servicename.log"
 
-	# Store mongo_version into the config of this app
-	ynh_app_setting_set --app=$app --key=mongo_version --value=$mongo_version
+    # Integrate MongoDB service in YunoHost
+    yunohost service add $mongodb_servicename --description="MongoDB daemon" --log="/var/log/mongodb/$mongodb_servicename.log"
+
+    # Store mongo_version into the config of this app
+    ynh_app_setting_set --app=$app --key=mongo_version --value=$mongo_version
 }
 
 # Remove MongoDB
@@ -364,16 +362,16 @@ ynh_install_mongo() {
 #
 #
 ynh_remove_mongo() {
-	# Only remove the mongodb service if it is not installed.
-	if ! ynh_package_is_installed --package="mongodb*"
-	then
-		ynh_print_info --message="Removing MongoDB service..."
-		mongodb_servicename=mongod
-		# Remove the mongodb service
-		yunohost service remove $mongodb_servicename
-		ynh_secure_remove --file="/var/lib/mongodb"
-		ynh_secure_remove --file="/var/log/mongodb"
-	fi
+    # Only remove the mongodb service if it is not installed.
+    if ! ynh_package_is_installed --package="mongodb*"
+    then
+        ynh_print_info --message="Removing MongoDB service..."
+        mongodb_servicename=mongod
+        # Remove the mongodb service
+        yunohost service remove $mongodb_servicename
+        ynh_secure_remove --file="/var/lib/mongodb"
+        ynh_secure_remove --file="/var/log/mongodb"
+    fi
 }
 
 #=================================================