diff --git a/.gitignore b/.gitignore
index 783a4ae..8f144f3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *~
 *.sw[op]
+.DS_Store
diff --git a/manifest.toml b/manifest.toml
index a58e7e6..5904443 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -19,7 +19,8 @@ admindoc = "https://github.com/ssb-ngi-pointer/go-ssb-room/blob/master/README.md
 userdoc = "https://github.com/ssb-ngi-pointer/go-ssb-room/blob/master/README.md"
 
 [integration]
-yunohost = ">= 11.2"
+yunohost = ">= 11.2.18"
+helpers_version = "2.1"
 architectures = ["amd64", "armhf", "arm64"]
 multi_instance = true
 ldap = false
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 944a65e..3d7f008 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -1,17 +1,5 @@
 #!/bin/bash
 
 #=================================================
-# COMMON VARIABLES
-#=================================================
-
-#=================================================
-# PERSONAL HELPERS
-#=================================================
-
-#=================================================
-# EXPERIMENTAL HELPERS
-#=================================================
-
-#=================================================
-# FUTURE OFFICIAL HELPERS
+# COMMON VARIABLES AND CUSTOM HELPERS
 #=================================================
diff --git a/scripts/backup b/scripts/backup
index d4006e2..8ff9300 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -1,37 +1,28 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 # 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
 
-#=================================================
-# DECLARE DATA AND CONF FILES TO BACKUP
-#=================================================
-ynh_print_info --message="Declaring files to be backed up..."
+ynh_print_info "Declaring files to be backed up..."
 
 #=================================================
 # BACKUP THE APP MAIN DIR
 #=================================================
 
-ynh_backup --src_path="$install_dir"
+ynh_backup "$install_dir"
 
 #=================================================
 # BACKUP THE DATA DIR
 #=================================================
 
-ynh_backup --src_path="$data_dir" --is_big
+ynh_backup "$data_dir"
 
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
 #=================================================
 
-ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
+ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
 
 #=================================================
 # SPECIFIC BACKUP
@@ -39,16 +30,16 @@ ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 # BACKUP LOGROTATE
 #=================================================
 
-ynh_backup --src_path="/etc/logrotate.d/$app"
+ynh_backup "/etc/logrotate.d/$app"
 
 #=================================================
 # BACKUP SYSTEMD
 #=================================================
 
-ynh_backup --src_path="/etc/systemd/system/$app.service"
+ynh_backup "/etc/systemd/system/$app.service"
 
 #=================================================
 # END OF SCRIPT
 #=================================================
 
-ynh_print_info --message="Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."
+ynh_print_info "Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."
diff --git a/scripts/change_url b/scripts/change_url
index 872e39f..f008a8d 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -1,49 +1,39 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC STARTING
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source _common.sh
 source /usr/share/yunohost/helpers
 
-#=================================================
-# STANDARD MODIFICATIONS
 #=================================================
 # STOP SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Stopping a systemd service..."  --weight=1
+ynh_script_progression "Stopping $app's systemd service..."
 
-ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
+ynh_systemctl --service=$app --action="stop"
 
 #=================================================
 # MODIFY URL IN NGINX CONF
 #=================================================
-ynh_script_progression --message="Updating NGINX web server configuration..."  --weight=1
+ynh_script_progression "Updating NGINX web server configuration..."
 
-ynh_change_url_nginx_config
+ynh_config_change_url_nginx
 
 # Change the domain for NGINX
 if [ $change_domain -eq 1 ]
 then
     # replace domain in systemd service file
-    ynh_replace_string --match_string=$old_domain --replace_string=$new_domain --target_file=/etc/systemd/system/$app.service
+    ynh_replace --match=$old_domain --replace=$new_domain --file=/etc/systemd/system/$app.service
     systemctl daemon-reload
 fi
 
-#=================================================
-# GENERIC FINALISATION
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Starting a systemd service..."  --weight=1
+ynh_script_progression "Starting $app's systemd service..."
 
-ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log" --line_match="event=serving"
+ynh_systemctl --service=$app --action="start"  --wait_until="event=serving"
 
 #=================================================
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Change of URL completed for $app"  --last
+ynh_script_progression "Change of URL completed for $app"
diff --git a/scripts/install b/scripts/install
index 71046e9..2ac533f 100755
--- a/scripts/install
+++ b/scripts/install
@@ -1,31 +1,24 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
-ynh_script_progression --message="Setting up source files..." --weight=1
+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"
 #=================================================
 # CREATE FIRST ADMIN USER
 #=================================================
-ynh_script_progression --message="Creating first ssbroom admin user"  --weight=1
+ynh_script_progression "Creating first ssbroom admin user"
 
-ynh_exec_as $app /usr/bin/expect<<EOF
+ynh_exec_as_app /usr/bin/expect<<EOF
 set force_conservative 0  ;
 set timeout -1
 spawn sh -c "$install_dir/insert-user -repo $data_dir $ssb_admin_id"
@@ -40,28 +33,28 @@ EOF
 #=================================================
 # SYSTEM CONFIGURATION
 #=================================================
-ynh_script_progression --message="Adding system configurations related to $app..." --weight=1
+ynh_script_progression "Adding system configurations related to $app..."
 
 # Create a dedicated NGINX config
-ynh_add_nginx_config
+ynh_config_add_nginx
 
 # Create a dedicated systemd config
-ynh_add_systemd_config
+ynh_config_add_systemd
 yunohost service add $app --description="Secure Scuttlebutt room server" --log="/var/log/$app/$app.log" --needs_exposed_ports $port_ssb
 
 # Use logrotate to manage application logfile(s)
-ynh_use_logrotate
+ynh_config_add_logrotate
 
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Starting a systemd service..."  --weight=1
+ynh_script_progression "Starting $app's systemd service..."
 
 # Start a systemd service
-ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log" --line_match="event=serving"
+ynh_systemctl --service=$app --action="start"  --wait_until="event=serving"
 
 #=================================================
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Installation of $app completed"  --last
+ynh_script_progression "Installation of $app completed"
diff --git a/scripts/remove b/scripts/remove
index 06bc287..2c65669 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
 
@@ -16,31 +10,31 @@ source /usr/share/yunohost/helpers
 #=================================================
 
 # Remove the service from the list of services known by YunoHost (added from `yunohost service add`)
-if ynh_exec_warn_less yunohost service status $app >/dev/null; then
-    ynh_script_progression --message="Removing $app service integration..."  --weight=1
+if ynh_hide_warnings yunohost service status $app >/dev/null; then
+    ynh_script_progression "Removing $app service integration..."
     yunohost service remove $app
 fi
 
 #=================================================
 # REMOVE SYSTEM CONFIGURATIONS
 #=================================================
-ynh_script_progression --message="Removing system configurations related to $app..." --weight=1
+ynh_script_progression "Removing system configurations related to $app..."
 
 # Remove the dedicated systemd config
-ynh_remove_systemd_config
+ynh_config_remove_systemd
 
 # Remove the app-specific logrotate config
-ynh_remove_logrotate
+ynh_config_remove_logrotate
 
 # Remove the dedicated NGINX config
-ynh_remove_nginx_config
+ynh_config_remove_nginx
 
 #=================================================
 # SPECIFIC REMOVE
 #=================================================
 # REMOVE VARIOUS FILES
 #=================================================
-ynh_script_progression --message="Removing various files..."  --weight=1
+ynh_script_progression "Removing various files..."
 
 # Remove the log files
 
@@ -48,4 +42,4 @@ ynh_script_progression --message="Removing various files..."  --weight=1
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Removal of $app completed"  --last
+ynh_script_progression "Removal of $app completed"
diff --git a/scripts/restore b/scripts/restore
index 71e3374..d6e22be 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -1,11 +1,5 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 # 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
@@ -13,19 +7,18 @@ source /usr/share/yunohost/helpers
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
-ynh_script_progression --message="Restoring the app main directory..."  --weight=1
+ynh_script_progression "Restoring the app main directory..."
 
-ynh_restore_file --origin_path="$install_dir"
-
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
+ynh_restore "$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"
 #=================================================
 # RESTORE THE DATA DIRECTORY
 #=================================================
-ynh_script_progression --message="Restoring the data directory..."  --weight=1
+ynh_script_progression "Restoring the data directory..."
 
-ynh_restore_file --origin_path="$data_dir" --not_mandatory
+ynh_restore "$data_dir"
 
 chmod -R o-rwx "$data_dir"
 chown -R $app:www-data "$data_dir"
@@ -33,30 +26,28 @@ chown -R $app:www-data "$data_dir"
 #=================================================
 # RESTORE SYSTEM CONFIGURATIONS
 #=================================================
-ynh_script_progression --message="Restoring system configurations related to $app..." --weight=1
+ynh_script_progression "Restoring system configurations related to $app..."
 
-ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
+ynh_restore "/etc/nginx/conf.d/$domain.d/$app.conf"
 
-ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
+ynh_restore "/etc/systemd/system/$app.service"
 systemctl enable $app.service --quiet
 yunohost service add $app --description="Secure Scuttlebutt room server" --log="/var/log/$app/$app.log" --needs_exposed_ports $port_ssb
 
 mkdir -p /var/log/$app
-ynh_restore_file --origin_path="/etc/logrotate.d/$app"
+ynh_restore "/etc/logrotate.d/$app"
 
-#=================================================
-# GENERIC FINALIZATION
 #=================================================
 # RELOAD NGINX AND PHP-FPM OR THE APP SERVICE
 #=================================================
-ynh_script_progression --message="Reloading NGINX web server and $app's service..." --weight=1
+ynh_script_progression "Reloading NGINX web server and $app's service..."
 
-ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log" --line_match="event=serving"
+ynh_systemctl --service=$app --action="start"  --wait_until="event=serving"
 
-ynh_systemd_action --service_name=nginx --action=reload
+ynh_systemctl --service=nginx --action=reload
 
 #=================================================
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Restoration completed for $app"  --last
+ynh_script_progression "Restoration completed for $app"
diff --git a/scripts/upgrade b/scripts/upgrade
index 8cf7d3f..0effdca 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,68 +1,58 @@
 #!/bin/bash
 
-#=================================================
-# GENERIC START
-#=================================================
-# IMPORT GENERIC HELPERS
-#=================================================
-
 source _common.sh
 source /usr/share/yunohost/helpers
 
-upgrade_type=$(ynh_check_app_version_changed)
-
-#=================================================
-# STANDARD UPGRADE STEPS
 #=================================================
 # STOP SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Stopping a systemd service..."  --weight=1
+ynh_script_progression "Stopping $app's systemd service..."
 
-ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
+ynh_systemctl --service=$app --action="stop"
 
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
-ynh_script_progression --message="Ensuring downward compatibility..."  --weight=1
+ynh_script_progression "Ensuring downward compatibility..."
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 
-if [ "$upgrade_type" == "UPGRADE_APP" ]; then
-    ynh_script_progression --message="Upgrading source files..."  --weight=1
+# FIXME: this is still supported but the recommendation is now to *always* re-setup the app sources wether or not the upstream sources changed
+if ynh_app_upstream_version_changed; then
+    ynh_script_progression "Upgrading source files..."
 
     # Download, check integrity, uncompress and patch the source from app.src
     ynh_setup_source --dest_dir="$install_dir"
 fi
 
-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"
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
-ynh_script_progression --message="Upgrading NGINX web server configuration..."  --weight=1
+ynh_script_progression "Upgrading NGINX web server configuration..."
 
 # Create a dedicated NGINX config
-ynh_add_nginx_config
+ynh_config_add_nginx
 
 # Create a dedicated systemd config
-ynh_add_systemd_config
+ynh_config_add_systemd
 yunohost service add $app --description="Secure Scuttlebutt room server" --log="/var/log/$app/$app.log" --needs_exposed_ports $port_ssb
 
 # Use logrotate to manage app-specific logfile(s)
-ynh_use_logrotate --non-append
+ynh_config_add_logrotate
 
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Starting a systemd service..."  --weight=1
+ynh_script_progression "Starting $app's systemd service..."
 
-ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log" --line_match="event=serving"
+ynh_systemctl --service=$app --action="start"  --wait_until="event=serving"
 
 #=================================================
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Upgrade of $app completed"  --last
+ynh_script_progression "Upgrade of $app completed"