diff --git a/scripts/backup b/scripts/backup
index 214b288..88866d0 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -22,15 +20,11 @@ ynh_print_info --message="Declaring files to be backed up..."
 ynh_backup --src_path="$install_dir"
 
 #=================================================
-# BACKUP THE NGINX CONFIGURATION
+# SYSTEM CONFIGURATION
 #=================================================
 
 ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
-#=================================================
-# BACKUP THE PHP-FPM CONFIGURATION
-#=================================================
-
 ynh_backup --src_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
 #=================================================
diff --git a/scripts/change_url b/scripts/change_url
index d285270..e8565ac 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC STARTING
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -9,8 +7,6 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# STANDARD MODIFICATIONS
 #=================================================
 # MODIFY URL IN NGINX CONF
 #=================================================
@@ -18,20 +14,18 @@ ynh_script_progression --message="Updating NGINX web server configuration..." --
 
 ynh_change_url_nginx_config
 
-#=================================================
-# SPECIFIC MODIFICATIONS
 #=================================================
 # SET NEW URL
 #=================================================
 ynh_script_progression --message="Setting the new URL..." --weight=1
 
-if [ $change_domain -eq 1 ]
-then
-    ynh_replace_string --match_string="\$wgServer = \"https://$old_domain\";" --replace_string="\$wgServer = \"https://$new_domain\";" --target_file="$install_dir/LocalSettings.php"
+if [ "$change_domain" -eq 1 ]; then
+    ynh_replace_string --target_file="$install_dir/LocalSettings.php" \
+        --match_string="\$wgServer = \"https://$old_domain\";" \
+        --replace_string="\$wgServer = \"https://$new_domain\";"
 fi
 
-if [ $change_path -eq 1 ]
-then
+if [ $change_path -eq 1 ]; then
     if [ "$old_path" = "/" ]; then
         old_scriptpath=""
     else
@@ -44,7 +38,9 @@ then
         new_scriptpath=$new_path
     fi
 
-    ynh_replace_string --match_string="\$wgScriptPath = \"$old_scriptpath\";" --replace_string="\$wgScriptPath = \"$new_scriptpath\";" --target_file="$install_dir/LocalSettings.php"
+    ynh_replace_string --target_file="$install_dir/LocalSettings.php" \
+        --match_string="\$wgScriptPath = \"$old_scriptpath\";" \
+        --replace_string="\$wgScriptPath = \"$new_scriptpath\";"
 fi
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index f938d4c..8f6eec9 100644
--- a/scripts/install
+++ b/scripts/install
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -16,45 +14,27 @@ source /usr/share/yunohost/helpers
 secret=$(ynh_string_random --length=64)
 create_account=false
 
-ynh_app_setting_set --app=$app --key=secret --value=$secret
-ynh_app_setting_set --app=$app --key=create_account --value=$create_account
+ynh_app_setting_set --app="$app" --key="secret" --value="$secret"
+ynh_app_setting_set --app="$app" --key="create_account" --value="$create_account"
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 ynh_script_progression --message="Setting up source files..." --weight=4
 
-    # 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/extensions/LDAPAuthentication2" --source_id="ldap_authentication2"
-    ynh_setup_source --dest_dir="$install_dir/extensions/LDAPProvider" --source_id="ldap_provider"
-    ynh_setup_source --dest_dir="$install_dir/extensions/PluggableAuth" --source_id="pluggable_auth"
+# 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/extensions/LDAPAuthentication2" --source_id="ldap_authentication2"
+ynh_setup_source --dest_dir="$install_dir/extensions/LDAPProvider" --source_id="ldap_provider"
+ynh_setup_source --dest_dir="$install_dir/extensions/PluggableAuth" --source_id="pluggable_auth"
 
-    # ynh_setup_source --dest_dir="$install_dir/extensions/LDAPGroups" --source_id="ldap_groups"
-    # ynh_setup_source --dest_dir="$install_dir/extensions/LDAPUserInfo" --source_id="ldap_userinfo"
-    # ynh_setup_source --dest_dir="$install_dir/extensions/LDAPAuthorization" --source_id="ldap_authorization"
+# ynh_setup_source --dest_dir="$install_dir/extensions/LDAPGroups" --source_id="ldap_groups"
+# ynh_setup_source --dest_dir="$install_dir/extensions/LDAPUserInfo" --source_id="ldap_userinfo"
+# ynh_setup_source --dest_dir="$install_dir/extensions/LDAPAuthorization" --source_id="ldap_authorization"
 
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+chown -R "$app:www-data" "$install_dir"
 
-#=================================================
-# PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Configuring PHP-FPM..." --weight=1
-
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=low --footprint=low
-
-#=================================================
-# NGINX CONFIGURATION
-#=================================================
-ynh_script_progression --message="Configuring NGINX web server..." --weight=1
-
-# Create a dedicated NGINX config
-ynh_add_nginx_config
-
-#=================================================
-# SPECIFIC SETUP
 #=================================================
 # RUN INSTALLATION OF MEDIAWIKI
 #=================================================
@@ -70,7 +50,7 @@ else
     mediawiki_path="$path"
 fi
 
-pushd "$install_dir" || ynh_die "Could not pushd $install_dir"
+pushd "$install_dir"
     "php$phpversion" "$install_dir/maintenance/install.php" \
         --server "https://$domain" \
         --scriptpath "$mediawiki_path" \
@@ -81,24 +61,35 @@ pushd "$install_dir" || ynh_die "Could not pushd $install_dir"
         --lang "$language" \
         --pass "$password" \
         "$wiki_name" "$admin"
-popd || ynh_die "Could not popd from $install_dir"
+popd
 
 #=================================================
-# ADD A CONFIGURATION
+# APP INITIAL CONFIGURATION
 #=================================================
-ynh_script_progression --message="Adding a configuration file..."
+ynh_script_progression --message="Adding $app's configuration files..." --weight=1
 
 # save the original LocalSettings.php for eventual debugging
 mv "$install_dir/LocalSettings.php" "$install_dir/LocalSettings.php.orig"
 
 wiki_name_underscorified="${wiki_name//[^a-zA-Z0-9]/_}"
 
-ynh_add_config --template="../conf/LocalSettings.php" --destination="$install_dir/LocalSettings.php"
+ynh_add_config --template="LocalSettings.php" --destination="$install_dir/LocalSettings.php"
 
 # This is required to update database schemas
 "php$phpversion" "$install_dir/maintenance/update.php"
 
-chown -R $app:www-data "$install_dir"
+chown -R "$app:www-data" "$install_dir"
+
+#=================================================
+# SYSTEM CONFIGURATION
+#=================================================
+ynh_script_progression --message="Adding system configurations related to $app..." --weight=1
+
+# Create a dedicated PHP-FPM config
+ynh_add_fpm_config --usage=low --footprint=low
+
+# Create a dedicated NGINX config
+ynh_add_nginx_config
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/remove b/scripts/remove
index 79cb058..01cd901 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -10,18 +8,13 @@ source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
-# REMOVE NGINX CONFIGURATION
+# REMOVE SYSTEM CONFIGURATIONS
 #=================================================
-ynh_script_progression --message="Removing NGINX web server configuration..." --weight=1
+ynh_script_progression --message="Removing system configurations related to $app..." --weight=1
 
 # Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
-#=================================================
-# REMOVE PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Removing PHP-FPM configuration..." --weight=1
-
 # Remove the dedicated PHP-FPM config
 ynh_remove_fpm_config
 
diff --git a/scripts/restore b/scripts/restore
index 5bf222b..6f4aa61 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -18,37 +16,30 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 ynh_restore_file --origin_path="$install_dir"
 
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
-
-#=================================================
-# RESTORE THE PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Restoring the PHP-FPM configuration..."
-
-ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
-
-#=================================================
-# RESTORE THE NGINX CONFIGURATION
-#=================================================
-ynh_script_progression --message="Restoring the NGINX web server configuration..."
-
-ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
+chown -R "$app:www-data" "$install_dir"
 
 #=================================================
 # RESTORE THE MYSQL DATABASE
 #=================================================
 ynh_script_progression --message="Restoring the MySQL database..." --weight=5
 
-ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
+ynh_mysql_connect_as --user="$db_user" --password="$db_pwd" --database="$db_name" < ./db.sql
 
 #=================================================
-# GENERIC FINALIZATION
+# RESTORE SYSTEM CONFIGURATIONS
+#=================================================
+ynh_script_progression --message="Restoring system configurations related to $app..." --weight=1
+
+ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
+
+ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
+
 #=================================================
 # RELOAD NGINX AND PHP-FPM
 #=================================================
 ynh_script_progression --message="Reloading NGINX web server and PHP-FPM..." --weight=1
 
-ynh_systemd_action --service_name=php$phpversion-fpm --action=reload
+ynh_systemd_action --service_name="php$phpversion-fpm" --action=reload
 ynh_systemd_action --service_name=nginx --action=reload
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 335274d..eeac629 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,7 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
@@ -9,14 +7,6 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# CHECK VERSION
-#=================================================
-
-upgrade_type=$(ynh_check_app_version_changed)
-
-#=================================================
-# STANDARD UPGRADE STEPS
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
@@ -25,70 +15,47 @@ ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 # If fpm_footprint doesn't exist, create it
 if [ -z "${fpm_footprint:-}" ]; then
     fpm_footprint=low
-    ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
+    ynh_app_setting_set --app="$app" --key="fpm_footprint" --value="$fpm_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=$fpm_usage
+    ynh_app_setting_set --app="$app" --key="fpm_usage" --value="$fpm_usage"
 fi
 
 # If create_account doesn't exist, create it
 if [ -z "${create_account:-}" ]; then
     create_account=false
-    ynh_app_setting_set --app=$app --key=create_account --value=$create_account
+    ynh_app_setting_set --app="$app" --key="create_account" --value="$create_account"
 fi
 
 # Removed in dec. 2020
-ldap_user=$(ynh_app_setting_get --app=$app --key=ldap_user)
+ldap_user=$(ynh_app_setting_get --app="$app" --key="ldap_user")
 if [[ -n "${ldap_user:-}" ]]; then
     yunohost user delete "$ldap_user"
-    ynh_app_setting_delete --app=$app --key=ldap_user
-    ynh_app_setting_delete --app=$app --key=ldap_password
+    ynh_app_setting_delete --app="$app" --key="ldap_user"
+    ynh_app_setting_delete --app="$app" --key="ldap_password"
 fi
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_script_progression --message="Upgrading source files..." --weight=4
 
-if [ "$upgrade_type" == "UPGRADE_APP" ]
-then
-    ynh_script_progression --message="Upgrading source files..." --weight=4
+# Download, check integrity, uncompress and patch the source from app.src
+ynh_setup_source --dest_dir="$install_dir"
+ynh_setup_source --dest_dir="$install_dir/extensions/LDAPAuthentication2" --source_id="ldap_authentication2"
+ynh_setup_source --dest_dir="$install_dir/extensions/LDAPProvider" --source_id="ldap_provider"
+ynh_setup_source --dest_dir="$install_dir/extensions/PluggableAuth" --source_id="pluggable_auth"
 
-    # 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/extensions/LDAPAuthentication2" --source_id="ldap_authentication2"
-    ynh_setup_source --dest_dir="$install_dir/extensions/LDAPProvider" --source_id="ldap_provider"
-    ynh_setup_source --dest_dir="$install_dir/extensions/PluggableAuth" --source_id="pluggable_auth"
-
-    # ynh_setup_source --dest_dir="$install_dir/extensions/LDAPGroups" --source_id="ldap_groups"
-    # ynh_setup_source --dest_dir="$install_dir/extensions/LDAPUserInfo" --source_id="ldap_userinfo"
-    # ynh_setup_source --dest_dir="$install_dir/extensions/LDAPAuthorization" --source_id="ldap_authorization"
-
-fi
+# ynh_setup_source --dest_dir="$install_dir/extensions/LDAPGroups" --source_id="ldap_groups"
+# ynh_setup_source --dest_dir="$install_dir/extensions/LDAPUserInfo" --source_id="ldap_userinfo"
+# ynh_setup_source --dest_dir="$install_dir/extensions/LDAPAuthorization" --source_id="ldap_authorization"
 
 chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+chown -R "$app:www-data" "$install_dir"
 
-#=================================================
-# PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=1
-
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config --phpversion=$phpversion --usage=$fpm_usage --footprint=$fpm_footprint
-
-#=================================================
-# NGINX CONFIGURATION
-#=================================================
-ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1
-
-# Create a dedicated NGINX config
-ynh_add_nginx_config
-
-#=================================================
-# SPECIFIC UPGRADE
 #=================================================
 # UPDATE A CONFIG FILE
 #=================================================
@@ -105,10 +72,10 @@ fi
 
 wiki_name_underscorified="${wiki_name//[^a-zA-Z0-9]/_}"
 
-ynh_add_config --template="../conf/LocalSettings.php" --destination="$install_dir/LocalSettings.php"
+ynh_add_config --template="LocalSettings.php" --destination="$install_dir/LocalSettings.php"
 
 # Check for admin password being too short for the new mediawiki requirements
-password_length=$(ynh_app_setting_get --app=$app --key=password | awk '{print length}')
+password_length=$(ynh_app_setting_get --app="$app" --key=password | awk '{print length}')
 if (( password_length < 10 )); then
     ynh_print_warn -m "The current admin password is $password_length long. Mediawiki now requires a 10 chars minimum password."
     ynh_print_warn -m "We are adapting the minimum length, but that would be great to change the admin password."
@@ -119,7 +86,18 @@ fi
 "php$phpversion" "$install_dir/maintenance/update.php"
 
 # Set permissions on app files
-chown -R $app:www-data "$install_dir"
+chown -R "$app:www-data" "$install_dir"
+
+#=================================================
+# REAPPLY SYSTEM CONFIGURATIONS
+#=================================================
+ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1
+
+# Create a dedicated PHP-FPM config
+ynh_add_fpm_config --phpversion="$phpversion" --usage="$fpm_usage" --footprint="$fpm_footprint"
+
+# Create a dedicated NGINX config
+ynh_add_nginx_config
 
 #=================================================
 # END OF SCRIPT