diff --git a/manifest.toml b/manifest.toml
index 67a9901..de5535f 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -16,7 +16,7 @@ admindoc = "https://cypht.org/install.html"
 code = "https://github.com/cypht-org/cypht"
 
 [integration]
-yunohost = ">= 11.2.20"
+yunohost = ">= 11.2.29"
 helpers_version = "2.1"
 architectures = "all"
 multi_instance = true
@@ -61,6 +61,7 @@ ram.runtime = "50M"
     [resources.system_user]
 
     [resources.install_dir]
+    group = "www-data:r-x"
 
     [resources.data_dir]
     subdirs = ["attachments", "users", "app_data"]
diff --git a/scripts/install b/scripts/install
index 252c3fb..7e7e872 100755
--- a/scripts/install
+++ b/scripts/install
@@ -23,9 +23,8 @@ ynh_script_progression "Setting up source files..."
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$install_dir"
 
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
-
+#REMOVEME? Assuming the install dir is setup using ynh_setup_source, the proper chmod/chowns are now already applied and it shouldn't be necessary to tweak perms | chmod -R o-rwx "$install_dir"
+#REMOVEME? Assuming the install dir is setup using ynh_setup_source, the proper chmod/chowns are now already applied and it shouldn't be necessary to tweak perms | chown -R $app:www-data "$install_dir"
 #=================================================
 # SYSTEM CONFIGURATION
 #=================================================
@@ -54,8 +53,8 @@ ynh_script_progression "Adding $app's configuration..."
 
 ynh_config_add --template=".env" --destination="$install_dir/.env"
 
-chmod 400 "$install_dir/.env"
-chown $app:$app "$install_dir/.env"
+#REMOVEME? Assuming the file is setup using ynh_config_add, the proper chmod/chowns are now already applied and it shouldn't be necessary to tweak perms | chmod 400 "$install_dir/.env"
+#REMOVEME? Assuming the file is setup using ynh_config_add, the proper chmod/chowns are now already applied and it shouldn't be necessary to tweak perms | chown $app:$app "$install_dir/.env"
 
 #=================================================
 # ADD AN ADMIN USER
diff --git a/scripts/restore b/scripts/restore
index 56aefdc..b9a21e5 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -1,6 +1,5 @@
 #!/bin/bash
 
-# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
 source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
@@ -11,9 +10,6 @@ ynh_script_progression "Restoring the app main directory..."
 
 ynh_restore "$install_dir"
 
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
-
 #=================================================
 # RESTORE THE DATA DIRECTORY
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 1da1b45..acf8b47 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -14,10 +14,7 @@ timezone=$(cat /etc/timezone)
 #=================================================
 ynh_script_progression "Upgrading source files..."
 
-ynh_setup_source --dest_dir="$install_dir" #--full_replace --keep=".env"
-
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+ynh_setup_source --dest_dir="$install_dir" #--full_replace #--keep=".env"
 
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS
@@ -43,9 +40,6 @@ ynh_script_progression "Adding $app's configuration..."
 
 ynh_config_add --template=".env" --destination="$install_dir/.env"
 
-chmod 400 "$install_dir/.env"
-chown $app:$app "$install_dir/.env"
-
 #=================================================
 # END OF SCRIPT
 #=================================================