diff --git a/scripts/install b/scripts/install
index 5784f80..66eab6f 100644
--- a/scripts/install
+++ b/scripts/install
@@ -56,7 +56,8 @@ ynh_script_progression --message="Validating installation parameters..." --time
 ### If the app uses nginx as web server (written in HTML/PHP in most cases), the final path should be "/var/www/$app".
 ### If the app provides an internal web server (or uses another application server such as uwsgi), the final path should be "/opt/yunohost/$app"
 final_path=/etc/jellyfin
-test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
+test ! -e "$final_path" || ynh_die --message="There is already a directory: $final_path "
+test ! -e "/var/lib/jellyfin" || ynh_die --message="There is already a directory: /var/lib/jellyfin "
 
 # Register (book) web path
 ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
@@ -78,11 +79,6 @@ ynh_app_setting_set --app=$app --key=is_public --value=$is_public
 #=================================================
 ynh_script_progression --message="Configuring firewall..." --time --weight=1
 
-### Use these lines if you have to open a port for the application
-### `ynh_find_port` will find the first available port starting from the given port.
-### If you're not using these lines:
-###		- Remove the section "CLOSE A PORT" in the remove script
-
 # Find an available port
 port=$(ynh_find_port --port=8095)
 ynh_app_setting_set --app=$app --key=port --value=$port
@@ -131,23 +127,12 @@ systemctl stop jellyfin
 # Port config
 ynh_replace_string --match_string="<HttpServerPortNumber>8096</HttpServerPortNumber>" --replace_string="<HttpServerPortNumber>$port</HttpServerPortNumber>" --target_file="/etc/jellyfin/system.xml"
 
-# BaseUrl
+# BaseUrl config
 ynh_replace_string --match_string="<BaseUrl />" --replace_string="<BaseUrl>$path_url</BaseUrl>" --target_file="/etc/jellyfin/system.xml"
 
 # Port config
 ynh_replace_string --match_string="<HttpServerPortNumber>8096</HttpServerPortNumber>" --replace_string="<HttpServerPortNumber>$port</HttpServerPortNumber>" --target_file="/etc/jellyfin/system.xml"
 
-#=================================================
-# STORE THE CONFIG FILE CHECKSUM
-#=================================================
-
-### `ynh_store_file_checksum` is used to store the checksum of a file.
-### That way, during the upgrade script, by using `ynh_backup_if_checksum_is_different`,
-### you can make a backup of this file before modifying it again if the admin had modified it.
-
-# Calculate and store the config file checksum into the app settings
-#ynh_store_file_checksum "/etc/jellyfin/system.xml"
-
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 3703bd8..20c50cd 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -79,19 +79,6 @@ ynh_script_progression --message="Making sure dedicated system user exists..." -
 # Create a dedicated user (if not existing)
 ynh_system_user_create --username=$app
 
-#=================================================
-# MODIFY A CONFIG FILE
-#=================================================
-
-### Verify the checksum of a file, stored by `ynh_store_file_checksum` in the install script.
-### And create a backup of this file if the checksum is different. So the file will be backed up if the admin had modified it.
-#ynh_backup_if_checksum_is_different --file="$final_path/CONFIG_FILE"
-
-#ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/CONFIG_FILE"
-
-# Recalculate and store the checksum of the file for the next upgrade.
-#ynh_store_file_checksum --file="$final_path/CONFIG_FILE"
-
 #=================================================
 # GENERIC FINALIZATION
 #=================================================