diff --git a/README.md b/README.md
index c9bd1d0..8296e58 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,9 @@
 Grafana for YunoHost
 -----------------------------
 
-**Important: This package is designed to be fed by the NetData application for monitoring measures, so please make sure the YunoHost NetData package is installed before installing it!**
+**Important: This package is designed to be fed by the NetData application for monitoring measures, so please make sure the YunoHost [NetData package](https://github.com/YunoHost-Apps/netdata_ynh/) is installed before installing it!**
+
+NetData only collects, displays and sets alarms based on data from the last hour; this packages allows to archive every metrics and put up statistics and dashboards on the long term.
 
 Note: You can use it without NetData, but you'll have to install a collection application (e.g. collectd) to gather data.
 
@@ -18,7 +20,7 @@ Note: You can use it without NetData, but you'll have to install a collection ap
 ---
 # Package description:
 
-* installs InfluxDB as timeseries database
+* installs InfluxDB as time series database
 * if the NetData package is installed, configures NetData to feed InfluxDB every minute
 * installs Grafana as dashboard server
 * creates a Grafana Data Source to fetch data from InfluxDB (and hence NetData!)
diff --git a/check_process b/check_process
index dc7db02..a6ef101 100644
--- a/check_process
+++ b/check_process
@@ -3,6 +3,7 @@
 	; Manifest
 		domain="domain.tld"	(DOMAIN)
 		path="/path"	(PATH)
+		admin="john"	(USER)
 		is_public=1	(PUBLIC|public=1|private=0)
 	; Checks
 		pkg_linter=1
diff --git a/manifest.json b/manifest.json
index 2799ba0..c03762d 100644
--- a/manifest.json
+++ b/manifest.json
@@ -42,6 +42,15 @@
                 "example": "/grafana",
                 "default": "/grafana"
             },
+            {
+                "name": "admin",
+                "type": "user",
+                "ask": {
+                    "en": "Choose an admin user",
+                    "fr": "Choisissez l'administrateur"
+                },
+                "example": "homer"
+            },
             {
                 "name": "is_public",
                 "type": "boolean",
diff --git a/scripts/install b/scripts/install
index adc3299..5cd67ba 100644
--- a/scripts/install
+++ b/scripts/install
@@ -13,6 +13,7 @@ source ./_common.sh
 # Retrieve arguments
 domain=$YNH_APP_ARG_DOMAIN
 path=$YNH_APP_ARG_PATH
+admin=$YNH_APP_ARG_ADMIN
 is_public=$YNH_APP_ARG_IS_PUBLIC
 
 # Source YunoHost helpers
@@ -26,6 +27,7 @@ sudo yunohost app checkurl "${domain}${path}" -a "$app" \
     || ynh_die "Path not available: ${domain}${path}"
 
 # Save app settings
+ynh_app_setting_set "$app" admin "$admin"
 ynh_app_setting_set "$app" is_public "$is_public"
 
 # Install needed dependency for HTTPS apt access
@@ -144,10 +146,15 @@ while [ -z "$(sudo netstat -lnput|grep grafana)" ] ; do
   sleep 5s
 done
 
+# Change admin name to the specified one
+mail=$(ynh_user_get_info "$admin" 'mail')
+ynh_mysql_connect_as $dbuser $dbpass $dbname <<< "UPDATE user SET login=\"$admin\", email=\"$mail\" WHERE login=\"admin\";"
+
 # Import default dashboard for NetData
 hostname=$(hostname)
 sed -i "s@yunohost.yunohost.org@$hostname@g" ../conf/grafana_init_data.sql
-mysql -u $dbuser -p$dbpass $dbname < ../conf/grafana_init_data.sql
+ynh_mysql_connect_as $dbuser $dbpass $dbname < ../conf/grafana_init_data.sql
+
 # Restart grafana server to take db change into account
 sudo systemctl restart grafana-server