diff --git a/check_process b/check_process
index 33ceb3d..a3c2682 100644
--- a/check_process
+++ b/check_process
@@ -1,8 +1,8 @@
 ;; Test complet avec Infcloud
 	; Manifest
-		domain="domain.tld"	(DOMAIN)
-		path="/path"	(PATH)
-		admin="john"	(USER)
+		domain="domain.tld"
+		path="/path"
+		admin="john"
 		infcloud=1
 		language="French"
 	; Checks
@@ -21,9 +21,9 @@
 		change_url=0
 ;; Test sans Infcloud
 	; Manifest
-		domain="domain.tld"	(DOMAIN)
-		path="/path"	(PATH)
-		admin="john"	(USER)
+		domain="domain.tld"
+		path="/path"
+		admin="john"
 		infcloud=0
 		language="French"
 	; Checks
diff --git a/manifest.json b/manifest.json
index f7ae9bb..ad18fdb 100644
--- a/manifest.json
+++ b/manifest.json
@@ -18,7 +18,7 @@
 		"email": "maniackc_dev@crudelis.fr"
 	}],
 	"requirements": {
-		"yunohost": ">= 3.8.1"
+		"yunohost": ">= 4.2.0"
 	},
 	"multi_instance": false,
 	"services": [
@@ -30,29 +30,17 @@
 			{
 				"name": "domain",
 				"type": "domain",
-				"ask": {
-					"en": "Choose a domain for Radicale",
-					"fr": "Choisissez un domaine pour Radicale"
-				},
 				"example": "domain.org"
 			},
 			{
 				"name": "path",
 				"type": "path",
-				"ask": {
-					"en": "Choose a path for Radicale",
-					"fr": "Choisissez un chemin pour Radicale"
-				},
 				"example": "/radicale",
 				"default": "/radicale"
 			},
 			{
 				"name": "admin",
 				"type": "user",
-				"ask": {
-					"en": "Choose the administrator (must be an existing YunoHost user)",
-					"fr": "Choisissez un administrateur (doit être un utilisateur YunoHost)"
-				},
 				"example": "john"
 			},
 			{
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 5865b83..09ff99e 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -38,83 +38,6 @@ bool_to_true_false () {
 # FUTUR OFFICIAL HELPERS
 #=================================================
 
-# Install or update the main directory yunohost.multimedia
-#
-# usage: ynh_multimedia_build_main_dir
-ynh_multimedia_build_main_dir () {
-	local ynh_media_release="v1.2"
-	local checksum="806a827ba1902d6911095602a9221181"
-
-	# Download yunohost.multimedia scripts
-	wget -nv https://github.com/YunoHost-Apps/yunohost.multimedia/archive/${ynh_media_release}.tar.gz 2>&1
-
-	# Check the control sum
-	echo "${checksum} ${ynh_media_release}.tar.gz" | md5sum -c --status \
-		|| ynh_die "Corrupt source"
-
-	# Check if the package acl is installed. Or install it.
-	ynh_package_is_installed 'acl' \
-		|| ynh_package_install acl
-
-	# Extract
-	mkdir yunohost.multimedia-master
-	tar -xf ${ynh_media_release}.tar.gz -C yunohost.multimedia-master --strip-components 1
-	./yunohost.multimedia-master/script/ynh_media_build.sh
-}
-
-# Add a directory in yunohost.multimedia
-# This "directory" will be a symbolic link to a existing directory.
-#
-# usage: ynh_multimedia_addfolder "Source directory" "Destination directory"
-#
-# | arg: -s, --source_dir= - Source directory - The real directory which contains your medias.
-# | arg: -d, --dest_dir= - Destination directory - The name and the place of the symbolic link, relative to "/home/yunohost.multimedia"
-ynh_multimedia_addfolder () {
-	# Declare an array to define the options of this helper.
-	declare -Ar args_array=( [s]=source_dir= [d]=dest_dir= )
-	local source_dir
-	local dest_dir
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-
-	./yunohost.multimedia-master/script/ynh_media_addfolder.sh --source="$source_dir" --dest="$dest_dir"
-}
-
-# Move a directory in yunohost.multimedia, and replace by a symbolic link
-#
-# usage: ynh_multimedia_movefolder "Source directory" "Destination directory"
-#
-# | arg: -s, --source_dir= - Source directory - The real directory which contains your medias.
-# It will be moved to "Destination directory"
-# A symbolic link will replace it.
-# | arg: -d, --dest_dir= - Destination directory - The new name and place of the directory, relative to "/home/yunohost.multimedia"
-ynh_multimedia_movefolder () {
-	# Declare an array to define the options of this helper.
-	declare -Ar args_array=( [s]=source_dir= [d]=dest_dir= )
-	local source_dir
-	local dest_dir
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-
-	./yunohost.multimedia-master/script/ynh_media_addfolder.sh --inv --source="$source_dir" --dest="$dest_dir"
-}
-
-# Allow an user to have an write authorisation in multimedia directories
-#
-# usage: ynh_multimedia_addaccess user_name
-#
-# | arg: -u, --user_name= - The name of the user which gain this access.
-ynh_multimedia_addaccess () {
-	# Declare an array to define the options of this helper.
-	declare -Ar args_array=( [u]=user_name=)
-	local user_name
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-
-	groupadd -f multimedia
-	usermod -a -G multimedia $user_name
-}
-
 
 #=================================================
 # EXPERIMENTAL HELPERS
diff --git a/scripts/install b/scripts/install
index db3d745..d980224 100755
--- a/scripts/install
+++ b/scripts/install
@@ -81,7 +81,7 @@ then
 	# Add InfCloud in NGINX config
 	ynh_replace_string "#INFCLOUD#" "" /etc/nginx/conf.d/$domain.d/$app.conf
 fi
-ynh_store_file_checksum "$finalnginxconf"
+ynh_store_file_checksum "/etc/nginx/conf.d/$domain.d/$app.conf"
 
 #=================================================
 # CREATE DEDICATED USER
@@ -264,14 +264,14 @@ then
 	# Replace radicale by InfCloud into YunoHost portal
 	ynh_app_setting_set $app path ${path_url%/}/infcloud
 	# Protect InfCloud access
-
-
+	ynh_app_setting_set $app protected_uris "/"
+	domain_regex=$(echo "$domain" | sed 's@-@.@g')
 	# Radicale is always accessible (For access to ressources)
-
+	ynh_app_setting_set $app skipped_regex "$domain_regex$path_url"
 else
 	# If only radicale is installed
 	# Radicale is always accessible (For access to ressources)
-
+	ynh_app_setting_set $app unprotected_uris "/"
 fi
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 6993aab..769b081 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -43,6 +43,20 @@ defaulteventduration=$(ynh_app_setting_get --app=$app --key=defaulteventduration
 
 upgrade_type=$(ynh_check_app_version_changed)
 
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backup the app before upgrading"
+
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+	# restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
@@ -102,20 +116,6 @@ if [ -z "$overwrite_phpfpm" ]; then
 	ynh_app_setting_set $app overwrite_phpfpm $overwrite_phpfpm
 fi
 
-#=================================================
-# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
-#=================================================
-ynh_script_progression --message="Backup the app before upgrading" --weight=9
-
-# Backup the current version of the app
-ynh_backup_before_upgrade
-ynh_clean_setup () {
-	# restore it if the upgrade fails
-	ynh_restore_upgradebackup
-}
-# Exit if an error occurs during the execution of the script
-ynh_abort_if_errors
-
 #=================================================
 # Migrate legacy permissions to new system
 #=================================================
@@ -138,7 +138,7 @@ fi
 #=================================================
 # ACTIVATE MAINTENANCE MODE
 #=================================================
-ynh_script_progression --message="Activate maintenance mode"
+ynh_script_progression --message="Activate maintenance mode" --weight=1
 
 ynh_maintenance_mode_ON
 
@@ -147,7 +147,7 @@ ynh_maintenance_mode_ON
 #=================================================
 # UPGRADE DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Upgrade dependencies"
+ynh_script_progression --message="Upgrade dependencies" --weight=5
 
 ynh_install_app_dependencies $pkg_dependencies
 
@@ -165,13 +165,13 @@ then
 		# Add InfCloud in NGINX config
 		ynh_replace_string "#INFCLOUD#" "" /etc/nginx/conf.d/$domain.d/$app.conf
 	fi
-	ynh_store_file_checksum "$finalnginxconf"
+	ynh_store_file_checksum "/etc/nginx/conf.d/$domain.d/$app.conf"
 fi
 
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
-ynh_script_progression --message="Create a dedicated user"
+ynh_script_progression --message="Create a dedicated user" --weight=2
 
 # Create a dedicated user (if not existing)
 ynh_system_user_create $app