diff --git a/check_process b/check_process
index 7970cbc..d20e931 100644
--- a/check_process
+++ b/check_process
@@ -1,9 +1,9 @@
 ;; Test complet
 	auto_remove=1
 	; Manifest
-		domain="domain.tld"	(DOMAIN)
-		path="/path"	(PATH)
-		is_public="Yes"	(PUBLIC|public=Yes|private=No)
+		domain="domain.tld"
+		path="/path"
+		is_public=1
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
diff --git a/conf/app.src b/conf/app.src
index 888851a..22e1951 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/apankrat/nullboard/archive/556147be5da1aaac4d86d2ce4dc11a1bbd10738a.tar.gz
-SOURCE_SUM=b88e4247e83b998d623f1beb880c3233989ecb513dbe74d1f019f22a49e719fd
+SOURCE_URL=https://github.com/apankrat/nullboard/archive/15da6226d3bc9641701a84c89a6ee01c08a416dc.tar.gz
+SOURCE_SUM=5143bdedf4c9e7e86e86666e37643a0b775656db80dade826687445d65feb11d
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
new file mode 100644
index 0000000..e69de29
diff --git a/doc/DISCLAIMER_fr.md b/doc/DISCLAIMER_fr.md
new file mode 100644
index 0000000..e69de29
diff --git a/manifest.json b/manifest.json
index 406133a..d2e2f0d 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,15 +6,21 @@
         "en": "Minimalist kanban board, focused on compactness and readability",
         "fr": "Kanban minimaliste, axé sur la compacité et la lisibilité"
     },
-    "version": "1.0~ynh2",
+    "version": "1.0~ynh3",
     "url": "https://nullboard.io/preview",
+    "upstream": {
+        "license": "BSD-2-Clause",
+        "website": "https://nullboard.io/",
+        "demo": "https://nullboard.io/preview",
+        "code": "https://github.com/apankrat/nullboard"
+    },
     "license": "BSD-2-Clause",
     "maintainer": {
         "name": "eric_G",
         "email": ""
     },
     "requirements": {
-        "yunohost": ">= 4.1.7"
+        "yunohost": ">= 4.2.4"
     },
     "multi_instance": true,
     "services": [
diff --git a/scripts/install b/scripts/install
index 0d907a7..32e8554 100755
--- a/scripts/install
+++ b/scripts/install
@@ -43,7 +43,15 @@ ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
 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=$app --key=path --value=$path_url
+
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Configuring system user..." --weight=1
+
+# Create a system user
+ynh_system_user_create --username=$app --home_dir="$final_path"
 
 #=================================================
 # STANDARD MODIFICATIONS
@@ -57,6 +65,10 @@ ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$final_path"
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -65,15 +77,6 @@ ynh_script_progression --message="Configuring NGINX web server..." --weight=2
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-
-# Set permissions to app files
-chown -R root: $final_path
-
 #=================================================
 # SETUP SSOWAT
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 2123569..0ccc587 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -36,6 +36,14 @@ ynh_script_progression --message="Removing NGINX web server configuration..." --
 # Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
+#=================================================
+# REMOVE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Removing the dedicated system user..." --weight=1
+
+# Delete a system user
+ynh_system_user_delete --username=$app
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 7680bdd..c05b261 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -43,6 +43,14 @@ test ! -d $final_path \
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
+
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -50,20 +58,9 @@ ynh_script_progression --message="Restoring $app main directory..." --weight=2
 
 ynh_restore_file --origin_path="$final_path"
 
-#=================================================
-# RECREATE THE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
-
-# Create the dedicated user (if not existing)
-ynh_system_user_create --username=$app
-
-#=================================================
-# RESTORE USER RIGHTS
-#=================================================
-
-# Restore permissions on app files
-chown -R root: $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/upgrade b/scripts/upgrade
index e3d475a..16d4ae4 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -43,6 +43,14 @@ if ynh_legacy_permissions_exists; then
 	ynh_app_setting_delete --app=$app --key=is_public
 fi
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
+
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
@@ -69,6 +77,10 @@ then
 	ynh_setup_source --dest_dir="$final_path"
 fi
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -77,13 +89,6 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-
-# Set permissions on app files
-chown -R root: $final_path
-
 #=================================================
 # RELOAD NGINX
 #=================================================