diff --git a/scripts/change_url b/scripts/change_url
index 615883e..4ba48b3 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -29,24 +29,24 @@ exec_occ() {
 
 if [ $change_domain -eq 1 ]
 then
-	# Change the trusted domain
-	exec_occ config:system:set trusted_domains 1 --value=$new_domain
+    # Change the trusted domain
+    exec_occ config:system:set trusted_domains 1 --value=$new_domain
 
-	# Change hostname for activity notifications
+    # Change hostname for activity notifications
     exec_occ config:system:set overwrite.cli.url --value="https://${new_domain}${new_path}"
-fi
 
-if [ $change_domain -eq 1 ]
-then
-	# Check if .well-known is available for this domain
-	if is_url_handled --domain="$new_domain" --path="/.well-known/caldav" || is_url_handled --domain="$new_domain" --path="/.well-known/carddav"
-	then
-		ynh_print_warn --message="Another app already uses the domain $new_domain to serve a CalDAV/CardDAV feature. You may encounter issues when dealing with your calendar or address book."
+    # Reload php fpm, necessary for force nextcloud to re-read config.php, cf opcache.revalidate_freq
+    ynh_systemd_action --service_name=php${phpversion}-fpm --action=reload
 
-		# Remove lines about .well-known/carddav and caldav with sed.
-		sed --in-place --regexp-extended '/location = \/\.well\-known\/(caldav|carddav)/d' "/etc/nginx/conf.d/$new_domain.d/$app.conf"
-		ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
-	fi
+    # Check if .well-known is available for this domain
+    if is_url_handled --domain="$new_domain" --path="/.well-known/caldav" || is_url_handled --domain="$new_domain" --path="/.well-known/carddav"
+    then
+        ynh_print_warn --message="Another app already uses the domain $new_domain to serve a CalDAV/CardDAV feature. You may encounter issues when dealing with your calendar or address book."
+
+        # Remove lines about .well-known/carddav and caldav with sed.
+        sed --in-place --regexp-extended '/location = \/\.well\-known\/(caldav|carddav)/d' "/etc/nginx/conf.d/$new_domain.d/$app.conf"
+        ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+    fi
 fi
 
 #=================================================
@@ -62,10 +62,3 @@ ynh_permission_url --permission="api" --url="re:$new_domain\/.well-known\/.*" --
 #=================================================
 
 ynh_script_progression --message="Change of URL completed for $app" --last
-
-# Tmp debug for the stupid trusted domain issue x_x
-cat /var/www/nextcloud/config/config.php >&$YNH_STDINFO
-
-systemctl restart php${phpversion}-fpm
-
-sleep 5
diff --git a/scripts/config b/scripts/config
index 5a7a2ac..1b5e26b 100644
--- a/scripts/config
+++ b/scripts/config
@@ -49,7 +49,7 @@ get__fpm_footprint() {
     fi
 }
 
-get__free_footprint() {
+get__fpm_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
@@ -120,7 +120,7 @@ ynh_app_config_validate() {
 ynh_app_config_apply() {
     _ynh_app_config_apply
 
-    ynh_add_fpm_config --phpversion=$phpversion --usage=$fpm_usage --footprint=$fpm_footprint
+    ynh_add_fpm_config
 }
 
 ynh_app_config_run $1
diff --git a/scripts/install b/scripts/install
index 47dd28f..e662aa2 100755
--- a/scripts/install
+++ b/scripts/install
@@ -1,32 +1,10 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# STORE SETTINGS FROM MANIFEST
-#=================================================
-
-maintenance_mode=0
-fpm_footprint="high"
-fpm_free_footprint=0
-fpm_usage="medium"
 phpflags="--define apc.enable_cli=1"
 
-#=================================================
-# STORE SETTINGS FROM MANIFEST
-#=================================================
-
-ynh_app_setting_set --app=$app --key=maintenance_mode --value=$maintenance_mode
-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
 ynh_app_setting_set --app=$app --key=phpflags --value=$phpflags
 
 #=================================================
@@ -56,8 +34,9 @@ ynh_setup_source --dest_dir="$install_dir"
 #=================================================
 ynh_script_progression --message="Configuring PHP-FPM..." --weight=5
 
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
+ynh_app_setting_set --app=$app --key=fpm_footprint --value=high
+ynh_app_setting_set --app=$app --key=fpm_usage --value=medium
+ynh_add_fpm_config
 
 #=================================================
 # NGINX CONFIGURATION
diff --git a/scripts/remove b/scripts/remove
index d09cafe..c39ac68 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,11 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source _common.sh
 source /usr/share/yunohost/helpers
 
diff --git a/scripts/restore b/scripts/restore
index 27f6844..f4ce619 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -1,11 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
@@ -34,7 +28,7 @@ ynh_script_progression --message="Reconfiguring PHP-FPM..." --weight=5
 ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
 # Recreate a dedicated php-fpm config
-ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$phpversion
+ynh_add_fpm_config
 
 #=================================================
 # RESTORE THE NGINX CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index cae9817..86f5951 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,18 +1,8 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# CHECK VERSION
-#=================================================
-
 upgrade_type=$(ynh_check_app_version_changed)
 
 #=================================================
@@ -23,30 +13,6 @@ ynh_script_progression --message="Ensuring downward compatibility..."
 # Remove the option backup_core_only if it's in the settings.yml file
 ynh_app_setting_delete --app=$app --key=backup_core_only
 
-# If maintenance_mode doesn't exist, create it
-if [ -z "${maintenance_mode:-}" ]; then
-	maintenance_mode=0
-	ynh_app_setting_set --app=$app --key=maintenance_mode --value=$maintenance_mode
-fi
-
-# If fpm_footprint doesn't exist, create it
-if [ -z "${fpm_footprint:-}" ]; then
-	fpm_footprint=high
-	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=medium
-	ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
-fi
-
 # If phpflags doesn't exist, create it
 if [ -z "${phpflags:-}" ]; then
 	phpflags="--define apc.enable_cli=1"
@@ -58,40 +24,6 @@ if [ -f /etc/php/$YNH_PHP_VERSION/fpm/conf.d/20-$app.ini ]; then
     ynh_secure_remove --file=/etc/php/$YNH_PHP_VERSION/fpm/conf.d/20-$app.ini
 fi
 
-#=================================================
-# PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2
-
-# Recreate a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
-
-#=================================================
-# NGINX CONFIGURATION
-#=================================================
-ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2
-
-ynh_backup_if_checksum_is_different --file="/etc/nginx/conf.d/$domain.d/$app.conf"
-
-# Delete current NGINX configuration to be able to check if .well-known is already served.
-ynh_remove_nginx_config
-ynh_app_setting_delete --app=$app --key="checksum__etc_nginx_conf.d_$domain.d_$app.conf"
-
-# Wait untils NGINX has fully reloaded
-ynh_systemd_action --service_name=nginx --action=reload --line_match="Reloaded" --log_path="systemd"
-
-# Check if .well-known is available for this domain
-if is_url_handled --domain="$domain" --path="/.well-known/caldav" || is_url_handled --domain="$domain" --path="/.well-known/carddav"
-then
-    ynh_print_warn --message="Another app already uses the domain $domain to serve a CalDAV/CardDAV feature. You may encounter issues when dealing with your calendar or address book."
-
-    # Remove lines about .well-known/carddav and caldav with sed.
-    sed --in-place --regexp-extended '/location = \/\.well\-known\/(caldav|carddav)/d' "../conf/nginx.conf"
-fi
-
-# Create a dedicated NGINX config
-ynh_add_nginx_config
-
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
@@ -107,7 +39,7 @@ exec_occ() {
     # Backward compatibility to upgrade from older versions
     if [ $current_major_version = "last" ] || [ $current_major_version -ge 26 ]
     then
-        NEXTCLOUD_PHP_VERSION=$phpversion
+        NEXTCLOUD_PHP_VERSION="8.2"
     elif [ $current_major_version -ge 24 ]
     then
         NEXTCLOUD_PHP_VERSION="8.1"
@@ -117,7 +49,11 @@ exec_occ() {
     else
         NEXTCLOUD_PHP_VERSION="7.1"
     fi
-    if ! timeout 1 php$NEXTCLOUD_PHP_VERSION 2>/dev/null; then
+
+    # NB : be super careful when designing this part of the code, because calling ynh_install_app_dependencies 
+    # will do magic regarding php configuration and $phpversion when the php version of the dependencies changes ...
+    phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+    if [[ "$NEXTCLOUD_PHP_VERSION" != "$phpversion" ]]; then
         local pkg_dependencies="$(dpkg-query --show --showformat='${Depends}' ${app}-ynh-deps)"
         pkg_dependencies="${pkg_dependencies//$phpversion/$NEXTCLOUD_PHP_VERSION}"
         ynh_install_app_dependencies "$pkg_dependencies"
@@ -231,12 +167,12 @@ EOF
         # Install the next nextcloud version in $tmpdir
         ynh_setup_source --dest_dir="$tmpdir"
 
-        # Enable maintenance mode
-        exec_occ maintenance:mode --on
-
         # Backup the config file in the temp dir
         cp -a "$install_dir/config/config.php" "$tmpdir/config/config.php"
 
+        # Enable maintenance mode
+        exec_occ maintenance:mode --on
+
         # Backup 3rd party applications from the current Nextcloud
         # But do not overwrite if there is any upgrade
         # (apps directory already exists in Nextcloud archive)
@@ -353,21 +289,9 @@ EOF
 fi
 
 #=================================================
-# UPDATE THE CRON JOB
-#=================================================
-
-cron_path="/etc/cron.d/$app"
-ynh_add_config --template="nextcloud.cron" --destination="$cron_path"
-chown root: "$cron_path"
-chmod 644 "$cron_path"
-
-exec_occ background:cron
-
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
+# REGEN SYSTEM CONFIGURATIONS
 #=================================================
+ynh_script_progression --message="Reapplying file permissions..." --weight=2
 
 # Fix app ownerships & permissions
 chown -R $app:www-data "$install_dir"
@@ -381,30 +305,62 @@ chmod 755 /home/yunohost.app
 chmod 750 $install_dir
 
 #=================================================
-# SETUP LOGROTATE
+# REGEN SYSTEM CONFIGURATIONS
 #=================================================
-ynh_script_progression --message="Upgrading logrotate configuration..."
+ynh_script_progression --message="Regenerating system configurations for $app..." --weight=2
 
-# Use logrotate to manage app-specific logfile(s)
+# -------
+# PHP-FPM
+# -------
+
+ynh_add_fpm_config
+
+# -------
+# NGINX
+# -------
+
+# Delete current NGINX configuration to be able to check if .well-known is already served.
+ynh_backup_if_checksum_is_different --file="/etc/nginx/conf.d/$domain.d/$app.conf"
+ynh_remove_nginx_config
+ynh_app_setting_delete --app=$app --key="checksum__etc_nginx_conf.d_$domain.d_$app.conf"
+
+# Wait untils NGINX has fully reloaded
+ynh_systemd_action --service_name=nginx --action=reload --line_match="Reloaded" --log_path="systemd"
+
+# Check if .well-known is available for this domain
+if is_url_handled --domain="$domain" --path="/.well-known/caldav" || is_url_handled --domain="$domain" --path="/.well-known/carddav"
+then
+    ynh_print_warn --message="Another app already uses the domain $domain to serve a CalDAV/CardDAV feature. You may encounter issues when dealing with your calendar or address book."
+
+    # Remove lines about .well-known/carddav and caldav with sed.
+    sed --in-place --regexp-extended '/location = \/\.well\-known\/(caldav|carddav)/d' "../conf/nginx.conf"
+fi
+
+# Create a dedicated NGINX config
+ynh_add_nginx_config
+
+# -------
+# CRON JOB
+# -------
+cron_path="/etc/cron.d/$app"
+ynh_add_config --template="../conf/nextcloud.cron" --destination="$cron_path"
+chown root: "$cron_path"
+chmod 644 "$cron_path"
+
+exec_occ background:cron
+
+# -------
+# LOGROTATE
+# -------
 ynh_use_logrotate --non-append
 
-#=================================================
-# SETUP FAIL2BAN
-#=================================================
-ynh_script_progression --message="Reconfiguring Fail2Ban..." --weight=7
+# -------
+# FAIL2BAN
+# -------
 
 # Create a dedicated Fail2Ban config
 ynh_add_fail2ban_config --logpath="$data_dir/data/nextcloud.log" --failregex="^.*Login failed: '.*' \(Remote IP: '<HOST>'.*$" --max_retry=5
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# RELOAD NGINX
-#=================================================
-ynh_script_progression --message="Reloading PHP-FPM..." --weight=2
-
-ynh_systemd_action --service_name="php${phpversion}-fpm" --action=reload
-
 #=================================================
 # END OF SCRIPT
 #=================================================