diff --git a/check_process b/check_process
index d6cc2f0..e6201ea 100644
--- a/check_process
+++ b/check_process
@@ -1,22 +1,22 @@
 ;; Test complet
-	; Manifest
-		domain="domain.tld"	(DOMAIN)
-		path="/path"	(PATH)
-		is_public=1	(PUBLIC|public=1|private=0)
-		always_encrypt=1
-	; Checks
-		pkg_linter=1
-		setup_sub_dir=1
-		setup_root=1
-		setup_nourl=0
-		setup_private=1
-		setup_public=1
-		upgrade=1
-		upgrade=1	from_commit=4c29aa94f9d9048411c6e165e122e03574fb9b8d
-		backup_restore=1
-		multi_instance=0
-		port_already_use=1	(8095)
-		change_url=1
+    ; Manifest
+        domain="domain.tld"	(DOMAIN)
+        path="/path"	(PATH)
+        is_public=1	(PUBLIC|public=1|private=0)
+        always_encrypt=1
+    ; Checks
+        pkg_linter=1
+        setup_sub_dir=1
+        setup_root=1
+        setup_nourl=0
+        setup_private=1
+        setup_public=1
+        upgrade=1
+        upgrade=1	from_commit=4c29aa94f9d9048411c6e165e122e03574fb9b8d
+        backup_restore=1
+        multi_instance=0
+        port_already_use=1	(8095)
+        change_url=1
 ;;; Levels
 # Level 5: https://github.com/YunoHost/package_linter/issues/36
 	Level 5=1
@@ -24,6 +24,6 @@
 Email=
 Notification=down
 ;;; Upgrade options
-	; commit=4c29aa94f9d9048411c6e165e122e03574fb9b8d
-		name=08 Sep 2017 4c29aa94f9d9048411c6e165e122e03574fb9b8d
-		manifest_arg=domain=DOMAIN&path=PATH&admin=USER&is_public=1&always_encrypt=1&
+    ; commit=4c29aa94f9d9048411c6e165e122e03574fb9b8d
+        name=08 Sep 2017 4c29aa94f9d9048411c6e165e122e03574fb9b8d
+        manifest_arg=domain=DOMAIN&path=PATH&admin=USER&is_public=1&always_encrypt=1&
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 78fb128..4f77ee9 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,30 +1,30 @@
 location __PATH__ {
 
-	# Force usage of https
-	if ($scheme = http) {
-		rewrite ^ https://$server_name$request_uri? permanent;
-	}
+    # Force usage of https
+    if ($scheme = http) {
+        rewrite ^ https://$server_name$request_uri? permanent;
+    }
 
-	# Include SSOWAT user panel.
-	include conf.d/yunohost_panel.conf.inc;
+    # Include SSOWAT user panel.
+    include conf.d/yunohost_panel.conf.inc;
 
-	# This is important for user's privacy !
-	access_log off;
-	error_log /var/log/nginx/lutim.error.log;
+    # This is important for user's privacy !
+    access_log off;
+    error_log /var/log/nginx/lutim.error.log;
 
-	# This is important ! Make it OK with your Lutim configuration
-	client_max_body_size 40M;
+    # This is important ! Make it OK with your Lutim configuration
+    client_max_body_size 40M;
 
-	proxy_pass http://127.0.0.1:__PORT__;
+    proxy_pass http://127.0.0.1:__PORT__;
 
-	proxy_set_header Host $host;
-	proxy_set_header X-Real-IP $remote_addr;
-	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 
-	# Lutim reads this header and understands that the current session is actually HTTPS.
-	# Enable it if you run a HTTPS server (in this case, don't forgot to change the listen port
-	proxy_set_header X-Forwarded-Proto https;
+    # Lutim reads this header and understands that the current session is actually HTTPS.
+    # Enable it if you run a HTTPS server (in this case, don't forgot to change the listen port
+    proxy_set_header X-Forwarded-Proto https;
 
-	# We expect the downsteam servers to redirect to the right hostname, so don't do any rewrite
-	proxy_redirect     off;
+    # We expect the downsteam servers to redirect to the right hostname, so don't do any rewrite
+    proxy_redirect     off;
 }
diff --git a/manifest.json b/manifest.json
index 9cf852d..cc0267a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,64 +1,64 @@
 {
-	"name": "Lutim",
-	"id": "lutim",
-	"packaging_format": 1,
-	"description": {
-		"en": "Self hosting images and sharing anonymous application",
-		"fr": "Application d'hébergement et de partage d'images anonyme"
-	},
-	"version": "0.11.6~ynh3",
-	"url": "https://lut.im",
-	"license": "AGPL-3.0",
-	"maintainer": {
-		"name": "Maniack Crudelis et matlink",
-		"email": "maniackc_dev@crudelis.fr"
-	},
-	"requirements": {
-		"yunohost": ">= 3.7"
-	},
-	"multi_instance": false,
-	"services": [
-		"nginx"
-	],
-	"arguments": {
-		"install" : [
-			{
-				"name": "domain",
-				"type": "domain",
-				"ask": {
-					"en": "Choose a domain for Lutim",
-					"fr": "Choisissez un domaine pour Lutim"
-				},
-				"example": "domain.org"
-			},
-			{
-				"name": "path",
-				"type": "path",
-				"ask": {
-					"en": "Choose a path for Lutim",
-					"fr": "Choisissez un chemin pour Lutim"
-				},
-				"example": "/lutim",
-				"default": "/lutim"
-			},
-			{
-				"name": "is_public",
-				"type": "boolean",
-				"ask": {
-					"en": "Uploading images is it public?",
-					"fr": "L'upload des images est-il public ?"
-				},
-				"default": false
-			},
-			{
-				"name": "always_encrypt",
-				"type": "boolean",
-				"ask": {
-					"en": "Force the encryption of images?",
-					"fr": "Forcer le chiffrement des images ?"
-				},
-				"default": true
-			}
-		]
-	}
+    "name": "Lutim",
+    "id": "lutim",
+    "packaging_format": 1,
+    "description": {
+        "en": "Self hosting images and sharing anonymous application",
+        "fr": "Application d'hébergement et de partage d'images anonyme"
+    },
+    "version": "0.11.6~ynh3",
+    "url": "https://lut.im",
+    "license": "AGPL-3.0",
+    "maintainer": {
+        "name": "Maniack Crudelis et matlink",
+        "email": "maniackc_dev@crudelis.fr"
+    },
+    "requirements": {
+        "yunohost": ">= 3.7"
+    },
+    "multi_instance": false,
+    "services": [
+        "nginx"
+    ],
+    "arguments": {
+        "install" : [
+            {
+                "name": "domain",
+                "type": "domain",
+                "ask": {
+                    "en": "Choose a domain for Lutim",
+                    "fr": "Choisissez un domaine pour Lutim"
+                },
+                "example": "domain.org"
+            },
+            {
+                "name": "path",
+                "type": "path",
+                "ask": {
+                    "en": "Choose a path for Lutim",
+                    "fr": "Choisissez un chemin pour Lutim"
+                },
+                "example": "/lutim",
+                "default": "/lutim"
+            },
+            {
+                "name": "is_public",
+                "type": "boolean",
+                "ask": {
+                    "en": "Uploading images is it public?",
+                    "fr": "L'upload des images est-il public ?"
+                },
+                "default": false,
+            },
+            {
+                "name": "always_encrypt",
+                "type": "boolean",
+                "ask": {
+                    "en": "Force the encryption of images?",
+                    "fr": "Forcer le chiffrement des images ?"
+                },
+                "default": true
+            }
+        ]
+    }
 }
diff --git a/scripts/actions/reset_default_config b/scripts/actions/reset_default_config
index d68db89..7526268 100755
--- a/scripts/actions/reset_default_config
+++ b/scripts/actions/reset_default_config
@@ -28,7 +28,7 @@ secret=$(ynh_app_setting_get --app=$app --key=secret)
 file="$1"
 
 if [ "$file" = "lutim.conf" ]; then
-	config_file="$final_path/lutim.conf"
+    config_file="$final_path/lutim.conf"
 fi
 
 #=================================================
@@ -43,15 +43,15 @@ ynh_backup_if_checksum_is_different --file="$config_file"
 
 if [ "$file" = "lutim.conf" ]
 then
-	# Get the default file and overwrite the current config
-	cp /etc/yunohost/apps/$app/conf/lutim.conf.template "$config_file"
+    # Get the default file and overwrite the current config
+    cp /etc/yunohost/apps/$app/conf/lutim.conf.template "$config_file"
 
-	# Recreate the default config
-	ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$config_file"
-	ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$config_file"
-	ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$config_file"
-	ynh_replace_string --match_string="__ENCRYPT__" --replace_string="$always_encrypt" --target_file="$config_file"
-	ynh_replace_string --match_string="__SECRET__" --replace_string="$secret" --target_file="$config_file"
+    # Recreate the default config
+    ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$config_file"
+    ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$config_file"
+    ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$config_file"
+    ynh_replace_string --match_string="__ENCRYPT__" --replace_string="$always_encrypt" --target_file="$config_file"
+    ynh_replace_string --match_string="__SECRET__" --replace_string="$secret" --target_file="$config_file"
     # Set the number of process for Lutim to twice the number of CPU core.
     ynh_replace_string --match_string="__WORKERS__" --replace_string="$(( $(nproc) * 2 ))" --target_file="$final_path/lutim.conf"
 fi
diff --git a/scripts/change_url b/scripts/change_url
index 9fdfded..369918d 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -63,13 +63,13 @@ ynh_maintenance_mode_ON
 change_domain=0
 if [ "$old_domain" != "$new_domain" ]
 then
-	change_domain=1
+    change_domain=1
 fi
 
 change_path=0
 if [ "$old_path" != "$new_path" ]
 then
-	change_path=1
+    change_path=1
 fi
 
 #=================================================
@@ -95,26 +95,26 @@ nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
 # Change the path in the nginx config file
 if [ $change_path -eq 1 ]
 then
-	# Make a backup of the original nginx config file if modified
-	ynh_backup_if_checksum_is_different --file="$nginx_conf_path"
+    # Make a backup of the original nginx config file if modified
+    ynh_backup_if_checksum_is_different --file="$nginx_conf_path"
 
-	# Set global variables for nginx helper
-	domain="$old_domain"
-	path_url="$new_path"
+    # Set global variables for nginx helper
+    domain="$old_domain"
+    path_url="$new_path"
 
-	# Create a dedicated nginx config
-	ynh_add_nginx_config
+    # Create a dedicated nginx config
+    ynh_add_nginx_config
 fi
 
 # Change the domain for nginx
 if [ $change_domain -eq 1 ]
 then
-	# Delete file checksum for the old conf file location
-	ynh_delete_file_checksum --file="$nginx_conf_path"
-	mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf
+    # Delete file checksum for the old conf file location
+    ynh_delete_file_checksum --file="$nginx_conf_path"
+    mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf
 
-	# Store file checksum for the new config file location
-	ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+    # Store file checksum for the new config file location
+    ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
 fi
 
 #=================================================
@@ -124,14 +124,14 @@ ynh_script_progression --message="Reconfiguring SSOwat..."
 
 if [ $is_public -eq 0 ] # Only user with a yunohost account can upload an image
 then
-	# If the app is private, viewing images stays publicly accessible.
-	if [ "$new_path" == "/" ]; then
-	    # If the path is /, clear it to prevent any error with the regex.
-	    new_path=""
-	fi
-	# Modify the domain to be used in a regex
-	domain_regex=$(echo "$new_domain" | sed 's@-@.@g')
- 	ynh_app_setting_set  --app=$app --key=protected_regex --value="$domain_regex$new_path/stats/?$","$domain_regex$new_path/manifest.webapp/?$","$domain_regex$new_path/?$","$domain_regex$new_path/[d-m]/.*$"
+    # If the app is private, viewing images stays publicly accessible.
+    if [ "$new_path" == "/" ]; then
+        # If the path is /, clear it to prevent any error with the regex.
+        new_path=""
+    fi
+    # Modify the domain to be used in a regex
+    domain_regex=$(echo "$new_domain" | sed 's@-@.@g')
+    ynh_app_setting_set  --app=$app --key=protected_regex --value="$domain_regex$new_path/stats/?$","$domain_regex$new_path/manifest.webapp/?$","$domain_regex$new_path/?$","$domain_regex$new_path/[d-m]/.*$"
 fi
 
 #=================================================
diff --git a/scripts/config b/scripts/config
index eef76b6..8162129 100644
--- a/scripts/config
+++ b/scripts/config
@@ -26,9 +26,9 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 config_file="$final_path/lutim.conf"
 
 get_config_value() {
-	option_name="$1"
-	# Get the value of this option in the config file
-	grep "$option_name *=>" "$config_file" | cut -d'>' -f2 | sed s'/ //g' | cut -d',' -f1
+    option_name="$1"
+    # Get the value of this option in the config file
+    grep "$option_name *=>" "$config_file" | cut -d'>' -f2 | sed s'/ //g' | cut -d',' -f1
 }
 
 #=================================================
@@ -49,15 +49,15 @@ antiflood="${YNH_CONFIG_MAIN_CONFIGURATION_ANTIFLOOD:-$old_antiflood}"
 # delay
 old_delay="$(get_config_value default_delay)"
 if [ $old_delay -eq 0 ]; then
-	old_delay=None
+    old_delay=None
 elif [ $old_delay -eq 1 ]; then
-	old_delay=Day
+    old_delay=Day
 elif [ $old_delay -eq 7 ]; then
-	old_delay=Week
+    old_delay=Week
 elif [ $old_delay -eq 30 ]; then
-	old_delay=Month
+    old_delay=Month
 else
-	old_delay=Year
+    old_delay=Year
 fi
 delay="${YNH_CONFIG_MAIN_CONFIGURATION_DELAY:-$old_delay}"
 
@@ -82,18 +82,18 @@ admin_mail_html="${YNH_CONFIG_MAIN_GLOBAL_CONFIG_EMAIL_TYPE:-$old_admin_mail_htm
 #=================================================
 
 show_config() {
-	# here you are supposed to read some config file/database/other then print the values
-	# ynh_return "YNH_CONFIG_${PANEL_ID}_${SECTION_ID}_${OPTION_ID}=value"
+    # here you are supposed to read some config file/database/other then print the values
+    # ynh_return "YNH_CONFIG_${PANEL_ID}_${SECTION_ID}_${OPTION_ID}=value"
 
-	ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_ALWAYS_ENCRYPT=$always_encrypt"
-	ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_ANTIFLOOD=$antiflood"
-	ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_DELAY=$delay"
+    ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_ALWAYS_ENCRYPT=$always_encrypt"
+    ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_ANTIFLOOD=$antiflood"
+    ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_DELAY=$delay"
 
-	ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SETTINGS=$overwrite_settings"
-	ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_NGINX=$overwrite_nginx"
-	ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SYSTEMD=$overwrite_systemd"
+    ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SETTINGS=$overwrite_settings"
+    ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_NGINX=$overwrite_nginx"
+    ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SYSTEMD=$overwrite_systemd"
 
-	ynh_return "YNH_CONFIG_MAIN_GLOBAL_CONFIG_EMAIL_TYPE=$admin_mail_html"
+    ynh_return "YNH_CONFIG_MAIN_GLOBAL_CONFIG_EMAIL_TYPE=$admin_mail_html"
 }
 
 #=================================================
@@ -166,6 +166,6 @@ apply_config() {
 #=================================================
 
 case $1 in
-  show) show_config;;
-  apply) apply_config;;
+    show) show_config;;
+    apply) apply_config;;
 esac
diff --git a/scripts/install b/scripts/install
index 602a0a4..8364344 100644
--- a/scripts/install
+++ b/scripts/install
@@ -17,7 +17,7 @@ source _variables
 
 ynh_clean_setup () {
 # Clean installation remaining that are not handle by the remove script.
-	ynh_clean_check_starting
+    ynh_clean_check_starting
 }
 ynh_abort_if_errors
 
@@ -158,7 +158,7 @@ carton install 2>&1 | tee -a "/var/log/$app/setup_carton.log")
 arch_dir=$(ls -1 $final_path/local/lib/perl5/ | grep linux-gnu)
 if [ "$?" -ne 0 ]
 then
-	ynh_die --message="Unable to find the perl directory for your architecture."
+    ynh_die --message="Unable to find the perl directory for your architecture."
 fi
 ynh_replace_string --match_string="__ARCHDIR__" --replace_string="$arch_dir" --target_file="$final_path/script/lutim"
 
@@ -208,17 +208,17 @@ ynh_permission_create --permission="upload images" --allowed="visitors"
 
 if [ $is_public -eq 0 ]
 then
-	# If the app is private, viewing images stays publicly accessible.
-	if [ "$path_url" == "/" ]; then
-	    # If the path is /, clear it to prevent any error with the regex.
-	    path_url=""
-	fi
-	# Modify the domain to be used in a regex
-	domain_regex=$(echo "$domain" | sed 's@-@.@g')
+    # If the app is private, viewing images stays publicly accessible.
+    if [ "$path_url" == "/" ]; then
+        # If the path is /, clear it to prevent any error with the regex.
+        path_url=""
+    fi
+    # Modify the domain to be used in a regex
+    domain_regex=$(echo "$domain" | sed 's@-@.@g')
     ynh_app_setting_set --app=$app --key=protected_regex --value="$domain_regex$path_url/stats/?$","$domain_regex$path_url/manifest.webapp/?$","$domain_regex$path_url/?$","$domain_regex$path_url/[d-m]/.*$"
 
-	# If the app is not public, then the "visitors" group doesn't have this permission
-	ynh_permission_update --permission="upload images" --remove="visitors"
+    # If the app is not public, then the "visitors" group doesn't have this permission
+    ynh_permission_update --permission="upload images" --remove="visitors"
 fi
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index f5388e7..170efbc 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -17,7 +17,7 @@ source ../settings/scripts/_variables
 
 ynh_clean_setup () {
 # Clean installation remaining that are not handle by the remove script.
-	ynh_clean_check_starting
+    ynh_clean_check_starting
 }
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
@@ -39,9 +39,9 @@ path_url=$(ynh_app_setting_get --app=$app --key=path)
 ynh_script_progression --message="Validating restoration parameters..."
 
 ynh_webpath_available --domain=$domain --path_url=$path_url \
-	|| ynh_die --message="Path not available: ${domain}${path_url}"
+    || ynh_die --message="Path not available: ${domain}${path_url}"
 test ! -d $final_path \
-	|| ynh_die --message="There is already a directory: $final_path "
+    || ynh_die --message="There is already a directory: $final_path "
 
 #=================================================
 # ACTIVATE MAINTENANCE MODE
diff --git a/scripts/upgrade b/scripts/upgrade
index 425d68e..d16892d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -48,87 +48,87 @@ ynh_script_progression --message="Ensuring downward compatibility..." --weight=2
 
 # Fix is_public as a boolean
 if [ "$is_public" = "Yes" ]; then
-	ynh_app_setting_set --app=$app --key=is_public --value=1
-	is_public=1
+    ynh_app_setting_set --app=$app --key=is_public --value=1
+    is_public=1
 elif [ "$is_public" = "No" ]; then
-	ynh_app_setting_set --app=$app --key=is_public --value=0
-	is_public=0
+    ynh_app_setting_set --app=$app --key=is_public --value=0
+    is_public=0
 fi
 
 skipped_uris=$(ynh_app_setting_get --app=$app --key=skipped_uris)
 
 # Unused with the permission system
 if [ ! -z "$skipped_uris" ]; then
-	ynh_app_setting_delete --app=$app --key=skipped_uris
+    ynh_app_setting_delete --app=$app --key=skipped_uris
 fi
 
 # Create the permission "upload images" only if it doesn't exist.
 if ! ynh_permission_exists --permission="upload images"
 then
-	# This is a fake permission without any URL.
-	# The purpose of this permission is only to trigger hooks post_app_add/removeaccess when it's modified.
-	# We can't use a real permission for now because the actual permision system doesn't support regex.
-	ynh_permission_create --permission="upload images" --allowed="visitors"
+    # This is a fake permission without any URL.
+    # The purpose of this permission is only to trigger hooks post_app_add/removeaccess when it's modified.
+    # We can't use a real permission for now because the actual permision system doesn't support regex.
+    ynh_permission_create --permission="upload images" --allowed="visitors"
 
-	if [ $is_public -eq 0 ]
-	then
-		# If the app is private, viewing images stays publicly accessible.
-		if [ "$path_url" == "/" ]; then
-			# If the path is /, clear it to prevent any error with the regex.
-			path_url=""
-		fi
-		# Modify the domain to be used in a regex
-		domain_regex=$(echo "$domain" | sed 's@-@.@g')
-		ynh_app_setting_set --app=$app --key=protected_regex --value="$domain_regex$path_url/stats/?$","$domain_regex$path_url/manifest.webapp/?$","$domain_regex$path_url/?$","$domain_regex$path_url/[d-m]/.*$"
+    if [ $is_public -eq 0 ]
+    then
+        # If the app is private, viewing images stays publicly accessible.
+        if [ "$path_url" == "/" ]; then
+            # If the path is /, clear it to prevent any error with the regex.
+            path_url=""
+        fi
+        # Modify the domain to be used in a regex
+        domain_regex=$(echo "$domain" | sed 's@-@.@g')
+        ynh_app_setting_set --app=$app --key=protected_regex --value="$domain_regex$path_url/stats/?$","$domain_regex$path_url/manifest.webapp/?$","$domain_regex$path_url/?$","$domain_regex$path_url/[d-m]/.*$"
 
-		# If the app is not public, then the "visitors" group doesn't have this permission
-		ynh_permission_update --permission="upload images" --remove="visitors"
-	fi
+        # If the app is not public, then the "visitors" group doesn't have this permission
+        ynh_permission_update --permission="upload images" --remove="visitors"
+    fi
 fi
 
 # if final_path isn't set, which can happens with old scripts, set final_path.
 if [ -z "$final_path" ]; then
-	final_path=/var/www/$app
-	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
+    final_path=/var/www/$app
+    ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 fi
 
 # Fix always_encrypt as a boolean
 if [ "$always_encrypt" = "Yes" ]; then
-	ynh_app_setting_set --app=$app --key=always_encrypt --value=1
-	always_encrypt=1
+    ynh_app_setting_set --app=$app --key=always_encrypt --value=1
+    always_encrypt=1
 elif [ "$always_encrypt" = "No" ]; then
-	ynh_app_setting_set --app=$app --key=always_encrypt --value=0
-	always_encrypt=0
+    ynh_app_setting_set --app=$app --key=always_encrypt --value=0
+    always_encrypt=0
 fi
 
 # If overwrite_settings doesn't exist, create it
 if [ -z "$overwrite_settings" ]; then
-	overwrite_settings=1
-	ynh_app_setting_set --app=$app --key=overwrite_settings --value=$overwrite_settings
+    overwrite_settings=1
+    ynh_app_setting_set --app=$app --key=overwrite_settings --value=$overwrite_settings
 fi
 
 # If overwrite_nginx doesn't exist, create it
 if [ -z "$overwrite_nginx" ]; then
-	overwrite_nginx=1
-	ynh_app_setting_set --app=$app --key=overwrite_nginx --value=$overwrite_nginx
+    overwrite_nginx=1
+    ynh_app_setting_set --app=$app --key=overwrite_nginx --value=$overwrite_nginx
 fi
 
 # If overwrite_systemd doesn't exist, create it
 if [ -z "$overwrite_systemd" ]; then
-	overwrite_systemd=1
-	ynh_app_setting_set --app=$app --key=overwrite_systemd --value=$overwrite_systemd
+    overwrite_systemd=1
+    ynh_app_setting_set --app=$app --key=overwrite_systemd --value=$overwrite_systemd
 fi
 
 # If secret doesn't exist, create it
 if [ -z "$secret" ]; then
-	secret=$(grep "secrets *=>" "$final_path/lutim.conf" | cut -d\' -f2)
-	ynh_app_setting_set --app=$app --key=secret --value=$secret
+    secret=$(grep "secrets *=>" "$final_path/lutim.conf" | cut -d\' -f2)
+    ynh_app_setting_set --app=$app --key=secret --value=$secret
 fi
 
 # Close opened port
 if yunohost firewall list | grep -q "\- $port$"
 then
-	ynh_exec_quiet yunohost firewall disallow TCP $port
+    ynh_exec_quiet yunohost firewall disallow TCP $port
 fi
 
 # Replace skipped_uris by unprotected_uris for the migration to the new permission system.
@@ -144,9 +144,9 @@ ynh_script_progression --message="Backing up the app before upgrading (may take
 ynh_backup_before_upgrade
 ynh_clean_setup () {
 # Clean installation remaining that are not handle by the remove script.
-	ynh_clean_check_starting
-	# restore it if the upgrade fails
-	ynh_restore_upgradebackup
+    ynh_clean_check_starting
+    # restore it if the upgrade fails
+    ynh_restore_upgradebackup
 }
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
@@ -173,9 +173,9 @@ ynh_maintenance_mode_ON
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-	ynh_script_progression --message="Upgrading source files..."
-	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path"
+    ynh_script_progression --message="Upgrading source files..."
+    # Download, check integrity, uncompress and patch the source from app.src
+    ynh_setup_source --dest_dir="$final_path"
 fi
 
 #=================================================
@@ -192,8 +192,8 @@ ynh_install_app_dependencies $app_depencencies
 # Overwrite the nginx configuration only if it's allowed
 if [ $overwrite_nginx -eq 1 ]
 then
-	ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=2
-	ynh_add_nginx_config
+    ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=2
+    ynh_add_nginx_config
 fi
 
 #=================================================
@@ -214,31 +214,31 @@ ynh_script_progression --message="Reconfigure Lutim"
 # Overwrite the settings config file only if it's allowed
 if [ $overwrite_settings -eq 1 ]
 then
-	# Configure Lutim
-	# Verify the checksum of a file, stored by `ynh_store_file_checksum` in the install script.
-	ynh_backup_if_checksum_is_different --file="$final_path/lutim.conf"
-	cp ../conf/lutim.conf.template "$final_path/lutim.conf"
-	ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/lutim.conf"
-	ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$final_path/lutim.conf"
-	ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$final_path/lutim.conf"
-	ynh_replace_string --match_string="__ENCRYPT__" --replace_string="$always_encrypt" --target_file="$final_path/lutim.conf"
-	ynh_replace_string --match_string="__SECRET__" --replace_string="$secret" --target_file="$final_path/lutim.conf"
+    # Configure Lutim
+    # Verify the checksum of a file, stored by `ynh_store_file_checksum` in the install script.
+    ynh_backup_if_checksum_is_different --file="$final_path/lutim.conf"
+    cp ../conf/lutim.conf.template "$final_path/lutim.conf"
+    ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/lutim.conf"
+    ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$final_path/lutim.conf"
+    ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$final_path/lutim.conf"
+    ynh_replace_string --match_string="__ENCRYPT__" --replace_string="$always_encrypt" --target_file="$final_path/lutim.conf"
+    ynh_replace_string --match_string="__SECRET__" --replace_string="$secret" --target_file="$final_path/lutim.conf"
     # Set the number of process for Lutim to twice the number of CPU core.
     ynh_replace_string --match_string="__WORKERS__" --replace_string="$(( $(nproc) * 2 ))" --target_file="$final_path/lutim.conf"
-	# Recalculate and store the checksum of the file for the next upgrade.
-	ynh_store_file_checksum --file="$final_path/lutim.conf"
+    # Recalculate and store the checksum of the file for the next upgrade.
+    ynh_store_file_checksum --file="$final_path/lutim.conf"
 
-	# Optional parameters from config-panel feature
-	if [ -n "$antiflood" ]; then
-		ynh_replace_string --match_string=".*anti_flood_delay *=>.*" --replace_string="    anti_flood_delay  => $antiflood," --target_file="$final_path/lutim.conf"
-		# Disable anti_flood_delay if the delay is 0
-		if [ $antiflood = 0 ]; then
-			ynh_replace_string --match_string="\(anti_flood_delay *=>.*\)" --replace_string="#\1" --target_file="$final_path/lutim.conf"
-		fi
-	fi
-	if [ -n "$delay" ]; then
-		ynh_replace_string --match_string=".*default_delay *=>.*" --replace_string="    default_delay     => $delay," --target_file="$final_path/lutim.conf"
-	fi
+    # Optional parameters from config-panel feature
+    if [ -n "$antiflood" ]; then
+        ynh_replace_string --match_string=".*anti_flood_delay *=>.*" --replace_string="    anti_flood_delay  => $antiflood," --target_file="$final_path/lutim.conf"
+        # Disable anti_flood_delay if the delay is 0
+        if [ $antiflood = 0 ]; then
+            ynh_replace_string --match_string="\(anti_flood_delay *=>.*\)" --replace_string="#\1" --target_file="$final_path/lutim.conf"
+        fi
+    fi
+    if [ -n "$delay" ]; then
+        ynh_replace_string --match_string=".*default_delay *=>.*" --replace_string="    default_delay     => $delay," --target_file="$final_path/lutim.conf"
+    fi
 fi
 
 #=================================================
@@ -255,8 +255,8 @@ ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_fil
 # Overwrite the systemd configuration only if it's allowed
 if [ $overwrite_systemd -eq 1 ]
 then
-	ynh_script_progression --message="Upgrading systemd configuration..." --weight=2
-	ynh_add_systemd_config
+    ynh_script_progression --message="Upgrading systemd configuration..." --weight=2
+    ynh_add_systemd_config
 fi
 
 #=================================================
@@ -273,9 +273,9 @@ ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_fil
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-	ynh_script_progression --message="Upgrading Lutim with carton..." --weight=4
-	(cd $final_path
-	carton install 2>&1 | tee -a "/var/log/$app/setup_carton.log")
+    ynh_script_progression --message="Upgrading Lutim with carton..." --weight=4
+    (cd $final_path
+    carton install 2>&1 | tee -a "/var/log/$app/setup_carton.log")
 fi
 
 #=================================================