diff --git a/scripts/_common.sh b/scripts/_common.sh
index ecd263f..944a65e 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,9 +4,6 @@
 # COMMON VARIABLES
 #=================================================
 
-# dependencies used by the app
-pkg_dependencies=""
-
 #=================================================
 # PERSONAL HELPERS
 #=================================================
diff --git a/scripts/change_url b/scripts/change_url
index b286df6..19a3176 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -107,7 +107,7 @@ fi
 #=================================================
 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
diff --git a/scripts/install b/scripts/install
index ece705d..838626a 100755
--- a/scripts/install
+++ b/scripts/install
@@ -56,13 +56,6 @@ ynh_script_progression --message="Finding an available port..." --weight=1
 port=$(ynh_find_port --port=8095)
 ynh_app_setting_set --app=$app --key=port --value=$port
 
-#=================================================
-# INSTALL DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Installing dependencies..." --weight=3
-
-ynh_install_app_dependencies $pkg_dependencies
-
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
@@ -145,6 +138,11 @@ ynh_script_progression --message="Configuring log rotation..." --weight=1
 # Use logrotate to manage application logfile(s)
 ynh_use_logrotate
 
+# Create log directory
+mkdir -p /var/log/$app
+touch /var/log/$app/$app.log
+chown $app -R /var/log/$app
+
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index c4cb93c..b5d9612 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -21,6 +21,7 @@ port=$(ynh_app_setting_get --app=$app --key=port)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
 # STANDARD REMOVE
@@ -59,14 +60,6 @@ ynh_script_progression --message="Removing the MySQL database..." --weight=1
 # Remove a database if it exists, along with the associated user
 ynh_mysql_remove_db --db_user=$db_user --db_name=$db_name
 
-#=================================================
-# REMOVE DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Removing dependencies..." --weight=1
-
-# Remove metapackage and its dependencies
-ynh_remove_app_dependencies
-
 #=================================================
 # REMOVE APP MAIN DIR
 #=================================================
@@ -75,6 +68,14 @@ ynh_script_progression --message="Removing app main directory..." --weight=1
 # Remove the app directory securely
 ynh_secure_remove --file="$final_path"
 
+#=================================================
+# REMOVE APP MAIN DIR
+#=================================================
+ynh_script_progression --message="Removing dir directory..." --weight=1
+
+# Remove the app directory securely
+ynh_secure_remove --file="$datadir"
+
 #=================================================
 # REMOVE NGINX CONFIGURATION
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index b360f60..5babc5a 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -65,6 +65,7 @@ ynh_restore_file --origin_path="$final_path"
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
+chmod +x "$final_path/shiori"
 
 #=================================================
 # RESTORE THE DATA DIRECTORY
@@ -79,16 +80,6 @@ chmod 750 "$datadir"
 chmod -R o-rwx "$datadir"
 chown -R $app:www-data "$datadir"
 
-#=================================================
-# SPECIFIC RESTORATION
-#=================================================
-# REINSTALL DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Reinstalling dependencies..." --weight=1
-
-# Define and install dependencies
-ynh_install_app_dependencies $pkg_dependencies
-
 #=================================================
 # RESTORE THE MYSQL DATABASE
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index b9e1b13..d2cf23c 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -18,6 +18,7 @@ app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
+port=$(ynh_app_setting_get --app=$app --key=port)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 
@@ -73,6 +74,7 @@ fi
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
+chmod +x "$final_path/shiori"
 
 #=================================================
 # NGINX CONFIGURATION
@@ -82,13 +84,6 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# UPGRADE DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Upgrading dependencies..." --weight=1
-
-ynh_install_app_dependencies $pkg_dependencies
-
 #=================================================
 # SETUP SYSTEMD
 #=================================================