diff --git a/config_panel.toml b/config_panel.toml
deleted file mode 100644
index f8663f0..0000000
--- a/config_panel.toml
+++ /dev/null
@@ -1,30 +0,0 @@
-version = "1.0"
-
-[main]
-name = "h5ai configuration"
-
-    [main.php_fpm_config]
-    name = "PHP-FPM configuration"
-
-        [main.php_fpm_config.fpm_footprint]
-        ask = "Memory footprint"
-        type = "select"
-        choices.low = "Low, <= 20Mb per pool"
-        choices.medium = "Medium, between 20Mb and 40Mb per pool"
-        choices.high = "High, > 40Mb per pool"
-        choices.specific = "Use specific value"
-        default = "low"
-
-        [main.php_fpm_config.fpm_free_footprint]
-        visible = "fpm_footprint == 'specific'"
-        ask = "Memory footprint of the service?"
-        type = "number"
-        default = "0"
-        help = "Free field to specify exactly the footprint in Mb if you don't want to use one of the three previous values."
-
-        [main.php_fpm_config.fpm_usage]
-        ask = "Expected usage"
-        type = "select"
-        choices = ["low", "medium", "high"]
-        default = "low"
-        help = "low: Personal usage, behind the SSO. No RAM footprint when not used, but the impact on the processor can be high if many users are using the service.<br>medium: Low usage, few people or/and publicly accessible. Low RAM footprint, medium processor footprint when used.<br>high: High usage, frequently visited website. High RAM footprint, but lower on processor usage and quickly responding."
diff --git a/scripts/config b/scripts/config
deleted file mode 100644
index 91c2de7..0000000
--- a/scripts/config
+++ /dev/null
@@ -1,95 +0,0 @@
-#!/bin/bash
-
-#=================================================
-# GENERIC STARTING
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
-source _common.sh
-source /usr/share/yunohost/helpers
-
-ynh_abort_if_errors
-
-#=================================================
-# RETRIEVE ARGUMENTS
-#=================================================
-
-phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
-current_fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
-
-#=================================================
-# SPECIFIC GETTERS FOR TOML SHORT KEY
-#=================================================
-
-get__fpm_footprint() {
-    # Free footprint value for php-fpm
-    # Check if current_fpm_footprint is an integer
-    if [ "$current_fpm_footprint" -eq "$current_fpm_footprint" ] 2> /dev/null
-    then
-        echo "specific"
-    else
-        echo "$current_fpm_footprint"
-    fi
-}
-
-get__free_footprint() {
-    # Free footprint value for php-fpm
-    # Check if current_fpm_footprint is an integer
-    if [ "$current_fpm_footprint" -eq "$current_fpm_footprint" ] 2> /dev/null
-    then
-        # If current_fpm_footprint is an integer, that's a numeric value for the footprint
-        echo "$current_fpm_footprint"
-    else
-        echo "0"
-    fi
-}
-
-#=================================================
-# SPECIFIC SETTERS FOR TOML SHORT KEYS
-#=================================================
-
-set__fpm_footprint() {
-    if [ "$fpm_footprint" != "specific" ]
-    then
-        ynh_app_setting_set --app=$app --key=fpm_footprint --value="$fpm_footprint"
-    fi
-}
-
-set__fpm_free_footprint() {
-    if [ "$fpm_footprint" = "specific" ]
-    then
-        ynh_app_setting_set --app=$app --key=fpm_footprint --value="$fpm_free_footprint"
-    fi
-}
-
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-
-ynh_app_config_validate() {
-    _ynh_app_config_validate
-
-    if [ "${changed[fpm_usage]}" == "true" ] || [ "${changed[fpm_footprint]}" == "true" ] || [ "${changed[fpm_free_footprint]}" == "true" ]; then
-        # If fpm_footprint is set to 'specific', use $fpm_free_footprint value.
-        if [ "$fpm_footprint" = "specific" ]
-        then
-            fpm_footprint=$fpm_free_footprint
-        fi
-
-        if [ "$fpm_footprint" == "0" ]
-        then
-            ynh_print_err --message="When selecting 'specific', you have to set a footprint value into the field below."
-
-            exit 0
-        fi
-    fi
-}
-
-ynh_app_config_apply() {
-    _ynh_app_config_apply
-
-    ynh_add_fpm_config --phpversion=$phpversion --usage=$fpm_usage --footprint=$fpm_footprint
-}
-
-ynh_app_config_run $1
diff --git a/scripts/install b/scripts/install
index 0cd3b20..13f1654 100644
--- a/scripts/install
+++ b/scripts/install
@@ -9,22 +9,6 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# RETRIEVE ARGUMENTS FROM THE MANIFEST
-#=================================================
-
-fpm_footprint="low"
-fpm_free_footprint=0
-fpm_usage="low"
-
-#=================================================
-# STORE SETTINGS FROM MANIFEST
-#=================================================
-
-ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
-ynh_app_setting_set --app=$app --key=fpm_free_footprint --value=$fpm_free_footprint
-ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
-
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -35,6 +19,7 @@ ynh_setup_source --dest_dir="$install_dir"
 
 chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
+chown 700 "$install_dir/_h5ai/private/conf"
 
 #=================================================
 # SYSTEM CONFIGURATION
@@ -42,7 +27,7 @@ chown -R $app:www-data "$install_dir"
 ynh_script_progression --message="Adding system configurations related to $app..." --weight=3
 
 # Create a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
+ynh_add_fpm_config
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config
diff --git a/scripts/upgrade b/scripts/upgrade
index 64f61d4..0a9c686 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,80 +1,34 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# LOAD SETTINGS
-#=================================================
-ynh_script_progression --message="Loading settings..." --weight=1
-
-if [[ "$path" != "/" ]]
-then
-    # We use the path url name (e.g. /documents) instead of h5ai for convenience...
-    install_dir=/var/www/$path
-else
-    install_dir=/var/www/$app
-fi
-
-#=================================================
-# CHECK VERSION
-#=================================================
-
 upgrade_type=$(ynh_check_app_version_changed)
 
-#=================================================
-# STANDARD UPGRADE STEPS
-#=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
-
-# If fpm_footprint doesn't exist, create it
-if [ -z "${fpm_footprint:-}" ]; then
-    fpm_footprint=low
-    ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
-fi
-
-# If fpm_free_footprint doesn't exist, create it
-if [ -z "${fpm_free_footprint:-}" ]; then
-    fpm_free_footprint=0
-    ynh_app_setting_set --app=$app --key=fpm_free_footprint --value=$fpm_free_footprint
-fi
-
-# If fpm_usage doesn't exist, create it
-if [ -z "${fpm_usage:-}" ]; then
-    fpm_usage=low
-    ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
-fi
-
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-	ynh_script_progression --message="Upgrading source files..." --weight=4
+	ynh_script_progression --message="Upgrading source files..."
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir"
+	ynh_setup_source --dest_dir="$install_dir" --keep="_h5ai/private/conf/options.json"
 fi
 
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+chmod o-rwx "$install_dir"
+chown $app:www-data "$install_dir"
+chown -R $app:www-data "$install_dir/_h5ai"
+chown 700 "$install_dir/_h5ai/private/conf"
 
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS
 #=================================================
-ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=4
+ynh_script_progression --message="Upgrading system configurations related to $app..."
 
 # Create a dedicated PHP-FPM config
-ynh_add_fpm_config --phpversion=$phpversion --usage=$fpm_usage --footprint=$fpm_footprint
+ynh_add_fpm_config
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config