diff --git a/check_process b/check_process
index 8b9b820..cc2fe7c 100644
--- a/check_process
+++ b/check_process
@@ -2,7 +2,9 @@
 	; Manifest
 		domain="domain.tld"
 		path="/path"
+		admin="john"
 		is_public=1
+		password="1Strong-Password"
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
diff --git a/conf/systemd.service b/conf/systemd.service
index 59299ec..1e5b3bb 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -17,6 +17,10 @@ Environment=MONGO_URL=mongodb://localhost:27017/__APP__?replicaSet=rs01
 Environment=MONGO_OPLOG_URL=mongodb://localhost:27017/local?replicaSet=rs01
 Environment=ROOT_URL=https://__DOMAIN____PATH__
 Environment=PORT=__PORT__
+Environment=ADMIN_USERNAME=__ADMIN__
+Environment=ADMIN_PASS=__PASSWORD__
+Environment=ADMIN_EMAIL=__EMAIL__
+Environment=OVERWRITE_SETTING_Show_Setup_Wizard=completed
 
 [Install]
 WantedBy=multi-user.target
diff --git a/manifest.json b/manifest.json
index 944f3a9..3a6d61c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -39,10 +39,18 @@
                 "example": "/rocketchat",
                 "default": "/rocketchat"
             },
+            {
+                "name": "admin",
+                "type": "user"
+            },
             {
                 "name": "is_public",
                 "type": "boolean",
                 "default": true
+            },
+            {
+                "name": "password",
+                "type": "password"
             }
         ]
     }
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 02a93b8..bbf1cfe 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -357,7 +357,7 @@ 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..."
+        ynh_script_progression --message="Removing MongoDB service..." --weight=2
         # Define Mongo Service Name
         if [ "$(lsb_release --codename --short)" = "buster" ]; then
             MONGODB_SERVICENAME=$MONGO_CE_SERVICENAME
diff --git a/scripts/install b/scripts/install
index 55f6106..dd22856 100644
--- a/scripts/install
+++ b/scripts/install
@@ -26,6 +26,9 @@ ynh_abort_if_errors
 domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
+password=$YNH_APP_ARG_PASSWORD
+admin=$YNH_APP_ARG_ADMIN
+email=$(ynh_user_get_info --username=$admin --key=mail)
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -47,6 +50,9 @@ 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=$app --key=password --value=$password
+ynh_app_setting_set --app=$app --key=email --value=$email
 
 #=================================================
 # STANDARD MODIFICATIONS
@@ -80,8 +86,6 @@ db_user=$db_name
 ynh_app_setting_set --app=$app --key=db_name --value=$db_name
 ynh_mongo_setup_db --db_user=$db_user --db_name=$db_name
 
-#mongo < ../conf/rocketchat_ldap.js
-
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
@@ -101,7 +105,7 @@ ynh_setup_source --dest_dir=$final_path
 
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
-chown -R $app:www-data "$final_path"
+chown -R $app:$app "$final_path"
 
 #=================================================
 # NGINX CONFIGURATION
@@ -120,7 +124,7 @@ ynh_script_progression --message="Building $app... (this will take some time and
 
 pushd $final_path/programs/server
  	ynh_use_nodejs
- 	ynh_exec_as $app env $ynh_node_load_PATH npm install 2>/dev/null
+ 	ynh_exec_as $app env $ynh_node_load_PATH npm install --unsafe-perm 2>/dev/null
 popd
 
 #=================================================
@@ -179,7 +183,7 @@ ynh_systemd_action --service_name=$mongodb_servicename --action=restart
 ynh_script_progression --message="Starting a systemd service..." --weight=2
 
 ynh_systemd_action --service_name=$app --action=start --log_path=systemd
-sleep 120
+sleep 100
 
 #=================================================
 # SETUP SSOWAT
diff --git a/scripts/remove b/scripts/remove
index 33b029f..3e8bd12 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -77,6 +77,10 @@ ynh_script_progression --message="Removing app main directory..." --weight=1
 # Remove the app directory securely
 ynh_secure_remove --file="$final_path"
 
+if [ -d "/tmp/ufs" ]; then
+	ynh_secure_remove --file="/tmp/ufs"
+fi
+
 #=================================================
 # REMOVE NGINX CONFIGURATION
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 95372e4..f801460 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -65,7 +65,7 @@ ynh_restore_file --origin_path="$final_path"
 
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
-chown -R $app:www-data "$final_path"
+chown -R $app:$app "$final_path"
 
 #=================================================
 # SPECIFIC RESTORATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 92452bc..2e10976 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -22,6 +22,9 @@ admin=$(ynh_app_setting_get --app=$app --key=admin)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 port=$(ynh_app_setting_get --app=$app --key=port)
+password=$(ynh_app_setting_get --app=$app --key=password)
+admin=$(ynh_app_setting_get --app=$app --key=admin)
+email=$(ynh_app_setting_get --app=$app --key=email)
 
 #=================================================
 # CHECK VERSION
@@ -93,7 +96,7 @@ fi
 
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
-chown -R $app:www-data "$final_path"
+chown -R $app:$app "$final_path"
 
 #=================================================
 # NGINX CONFIGURATION
@@ -119,7 +122,7 @@ ynh_script_progression --message="Building $app... (this will take some time and
 
 pushd $final_path/programs/server
  	ynh_use_nodejs
- 	ynh_exec_as $app env $ynh_node_load_PATH npm install 2>/dev/null
+ 	ynh_exec_as $app env $ynh_node_load_PATH npm install --unsafe-perm 2>/dev/null
 popd
 
 #=================================================
@@ -169,7 +172,7 @@ ynh_script_progression --message="Starting a systemd service..." --weight=10
 
 ynh_systemd_action --service_name=$mongodb_servicename --action=restart --log_path=systemd 
 ynh_systemd_action --service_name=$app --action=start --log_path=systemd
-sleep 120
+sleep 100
 
 #=================================================
 # RELOAD NGINX