diff --git a/conf/.env b/conf/.env
new file mode 100644
index 0000000..afa1777
--- /dev/null
+++ b/conf/.env
@@ -0,0 +1,14 @@
+# Database configuration
+DB_DRIVER=pgsql
+DB_HOST=127.0.0.1
+DB_PORT=5432
+DB_DATABASE=__DB_NAME__
+DB_USERNAME=__DB_USER__
+DB_PASSWORD=__DB_PWD__
+
+# Daemon configuration
+DAEMON_URL=https://__DOMAIN____PATH__/ # Public URL of your Movim instance
+DAEMON_PORT=__PORT__ # Port on which the daemon will listen
+DAEMON_INTERFACE=127.0.0.1 # Interface on which the daemon will listen, must be an IP
+DAEMON_DEBUG=true
+DAEMON_VERBOSE=true
diff --git a/conf/db.example.inc.php b/conf/db.example.inc.php
deleted file mode 100644
index 26e9bfb..0000000
--- a/conf/db.example.inc.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-# This is the database configuration of Movim
-# You need to copy an rename this file to 'db.inc.php' and complete the values
-$conf = [
-    # The type can be 'pgsql' or 'mysql'
-    'type'        => 'pgsql',
-    # The database username
-    'username'    => '__DB_USER__',
-    # The password
-    'password'    => '__DB_PWD__',
-    # Where can we find the database ?
-    'host'        => 'localhost',
-    # The port number, 3306 for MySQL and 5432 for PostgreSQL
-    'port'        => 5432,
-    # The database name
-    'database'    => '__DB_NAME__'
-];
diff --git a/conf/systemd.service b/conf/systemd.service
index 7403f00..1e415e4 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -1,6 +1,6 @@
 [Unit]
 Description=Movim: responsive web-based XMPP client
-After=nginx.service network.target local-fs.target postgresql.service
+After=nginx.service network.target local-fs.target
 
 [Service]
 Type=simple
@@ -8,13 +8,44 @@ User=__APP__
 Group=__APP__
 Environment=PUBLIC_URL=https://__DOMAIN____PATH__/
 Environment=WS_PORT=__PORT__
+EnvironmentFile__INSTALL_DIR__/
 WorkingDirectory=__INSTALL_DIR__/
-ExecStart=/usr/bin/php__PHPVERSION__ daemon.php start --url=${PUBLIC_URL} --port=${WS_PORT}
+ExecStart=/usr/bin/php__PHPVERSION__ daemon.php start
 StandardOutput=syslog
 SyslogIdentifier=__APP__
 PIDFile=/run/movim.pid
 Restart=on-failure
 RestartSec=10
 
+# Sandboxing options to harden security
+# Depending on specificities of your service/app, you may need to tweak these
+# .. but this should be a good baseline
+# Details for these options: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
+NoNewPrivileges=yes
+PrivateTmp=yes
+PrivateDevices=yes
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+RestrictNamespaces=yes
+RestrictRealtime=yes
+DevicePolicy=closed
+ProtectSystem=full
+ProtectControlGroups=yes
+ProtectKernelModules=yes
+ProtectKernelTunables=yes
+LockPersonality=yes
+SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap
+
+# Denying access to capabilities that should not be relevant for webapps
+# Doc: https://man7.org/linux/man-pages/man7/capabilities.7.html
+CapabilityBoundingSet=~CAP_RAWIO CAP_MKNOD
+CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE
+CapabilityBoundingSet=~CAP_SYS_BOOT CAP_SYS_TIME CAP_SYS_MODULE CAP_SYS_PACCT
+CapabilityBoundingSet=~CAP_LEASE CAP_LINUX_IMMUTABLE CAP_IPC_LOCK
+CapabilityBoundingSet=~CAP_BLOCK_SUSPEND CAP_WAKE_ALARM
+CapabilityBoundingSet=~CAP_SYS_TTY_CONFIG
+CapabilityBoundingSet=~CAP_MAC_ADMIN CAP_MAC_OVERRIDE
+CapabilityBoundingSet=~CAP_NET_ADMIN CAP_NET_BROADCAST CAP_NET_RAW
+CapabilityBoundingSet=~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SYSLOG
+
 [Install]
 WantedBy=multi-user.target
diff --git a/manifest.toml b/manifest.toml
index 9fe7d0c..c8f755d 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -23,8 +23,11 @@ cpe = "cpe:2.3:a:movim:movim"
 yunohost = ">= 11.2"
 architectures = "all"
 multi_instance = false
+
 ldap = false
-sso = false
+
+sso = true
+
 disk = "50M"
 ram.build = "100M"
 ram.runtime = "50M"
@@ -51,7 +54,6 @@ ram.runtime = "50M"
     [resources.sources.main]
     url = "https://github.com/movim/movim/archive/refs/tags/v0.23.tar.gz"
     sha256 = "f0acd671c8e7e6979c75265ea696101ebd68f47d74cb7e5908eb8071a89026c3"
-
     autoupdate.strategy = "latest_github_tag"
 
     [resources.ports]
@@ -69,6 +71,7 @@ ram.runtime = "50M"
         "php8.2-mbstring",
         "php8.2-imagick",
         "php8.2-gd",
+        "php8.2-dom",
         "php8.2-pgsql",
         "php8.2-xml",
         "postgresql",
diff --git a/scripts/_common.sh b/scripts/_common.sh
index ff3a014..0df6e80 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,7 +4,7 @@
 # COMMON VARIABLES
 #=================================================
 
-YNH_COMPOSER_VERSION="2.2.5"
+YNH_COMPOSER_VERSION="2.4.3"
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/install b/scripts/install
index 9326fbb..fd127bd 100644
--- a/scripts/install
+++ b/scripts/install
@@ -10,35 +10,18 @@ source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
-# INITIALIZE AND STORE SETTINGS
+# RETRIEVE ARGUMENTS FROM THE MANIFEST
 #=================================================
 
-fpm_footprint="low"
-fpm_free_footprint=0
-fpm_usage="low"
-ynh_app_setting_set --app="$app" --key=fpm_footprint --value="$fpm_footprint"
-ynh_app_setting_set --app="$app" --key=fpm_free_footprint --value="$fpm_free_footprint"
-ynh_app_setting_set --app="$app" --key=fpm_usage --value="$fpm_usage"
-
-#=================================================
-# CONFIGURING A POSTGRESQL DATABASE
-#=================================================
-ynh_script_progression --message="Configuring a PostgreSQL database..."
-
-ynh_psql_execute_as_root --database="$db_name" --sql="CREATE EXTENSION IF NOT EXISTS unaccent;"
-ynh_psql_execute_as_root --database="$db_name" --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;"
+timezone=$(cat /etc/timezone)
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 ynh_script_progression --message="Setting up source files..."
 
-# Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$install_dir"
 
-# Temporary workaround to fix movim.ERROR: Error: Call to undefined function GuzzleHttp\Psr7\uri_for()
-ynh_replace_string --match_string="0.3.5" --replace_string="0.4.1" --target_file="$install_dir/composer.json"
-
 chmod -R o-rwx "$install_dir"
 chown -R "$app:www-data" "$install_dir"
 
@@ -49,10 +32,10 @@ chown -R "$app:www-data" "$install_dir"
 #=================================================
 ynh_script_progression --message="Adding a configuration file..."
 
-ynh_add_config --template="db.example.inc.php" --destination="$install_dir/config/db.inc.php"
+ynh_add_config --template=".env" --destination="$install_dir/.env"
 
-chmod 400 "$install_dir/config/db.inc.php"
-chown "$app:$app" "$install_dir/config/db.inc.php"
+chmod 650 "$install_dir/.env"
+chown "$app:$app" "$install_dir/.env"
 
 #=================================================
 # BUILD MOVIM
@@ -60,32 +43,29 @@ chown "$app:$app" "$install_dir/config/db.inc.php"
 ynh_script_progression --message="Building Movim..."
 
 # Install composer
-ynh_exec_warn_less ynh_install_composer --phpversion="$phpversion" --workdir="$install_dir"
+ynh_install_composer
+
+ynh_exec_warn_less ynh_composer_exec --commands="install"
+ynh_exec_warn_less ynh_composer_exec --commands="movim:migrate"
 
-ynh_exec_warn_less ynh_composer_exec --phpversion="$phpversion" --workdir="$install_dir" --commands="movim:migrate"
-ynh_exec_as "$app" "php$phpversion" "$install_dir/daemon.php" config --username="$admin" --password="$password" --quiet
 
 #=================================================
 # 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=$fpm_usage --footprint=$fpm_footprint
+ynh_add_fpm_config
 
-# Create a dedicated NGINX config
 ynh_add_nginx_config
 
-# Create a dedicated systemd config
 ynh_add_systemd_config
-yunohost service add "$app" --description="Responsive web-based XMPP client"
+yunohost service add "$app" --description="Responsive web-based XMPP client" --log="/var/log/$app/$app.log"
 
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
 ynh_script_progression --message="Starting a systemd service..."
 
-# Start a systemd service
 ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd" --line_match="Movim daemon launched"
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 24adb09..8781ccd 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -19,13 +19,10 @@ if ynh_exec_warn_less yunohost service status "$app" >/dev/null; then
     yunohost service remove "$app"
 fi
 
-# Remove the dedicated systemd config
 ynh_remove_systemd_config
 
-# Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
-# Remove the dedicated PHP-FPM config
 ynh_remove_fpm_config
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 1a6977b..e35873a 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -10,6 +10,12 @@
 source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
+#=================================================
+# LOAD SETTINGS
+#=================================================
+
+timezone=$(cat /etc/timezone)
+
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -17,7 +23,6 @@ ynh_script_progression --message="Restoring the app main directory..."
 
 ynh_restore_file --origin_path="$install_dir"
 
-chmod 750 "$install_dir"
 chmod -R o-rwx "$install_dir"
 chown -R "$app:www-data" "$install_dir"
 
@@ -35,14 +40,14 @@ ynh_script_progression --message="Restoring system configurations related to $ap
 
 ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
-# Recreate a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$phpversion
+ynh_add_fpm_config
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
 ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
 systemctl enable "$app.service" --quiet
-yunohost service add "$app" --description="Responsive web-based XMPP client"
+
+yunohost service add "$app" --description="Responsive web-based XMPP client" --log="/var/log/$app/$app.log"
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 7c13422..57a00df 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -9,6 +9,12 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
+#=================================================
+# LOAD SETTINGS
+#=================================================
+
+timezone=$(cat /etc/timezone)
+
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
@@ -18,39 +24,12 @@ ynh_script_progression --message="Stopping a systemd service..."
 
 ynh_systemd_action --service_name=$app --action="stop" --log_path="systemd"
 
-#=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-ynh_script_progression --message="Ensuring downward compatibility..."
-
-# 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="$fpm_footprint"
-fi
-
-# If fpm_free_footprint doesn't exist, create it
-if [ -z "${fpm_free_footprint:-}" ]; then
-    fpm_free_footprint=0
-    ynh_app_setting_set --app="$app" --key=fpm_free_footprint --value="$fpm_free_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"
-fi
-
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 ynh_script_progression --message="Upgrading source files..."
 
-# Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="config/db.inc.php"
-
-# Temporary workaround to fix movim.ERROR: Error: Call to undefined function GuzzleHttp\Psr7\uri_for()
-ynh_replace_string --match_string="0.3.5" --replace_string="0.4.1" --target_file="$install_dir/composer.json"
+ynh_setup_source --dest_dir="$install_dir" --full_replace=1
 
 chmod -R o-rwx "$install_dir"
 chown -R "$app:www-data" "$install_dir"
@@ -62,35 +41,33 @@ chown -R "$app:www-data" "$install_dir"
 #=================================================
 ynh_script_progression --message="Updating a configuration file..."
 
-ynh_add_config --template="db.example.inc.php" --destination="$install_dir/config/db.inc.php"
+ynh_add_config --template=".env" --destination="$install_dir/.env"
 
-chmod 400 "$install_dir/config/db.inc.php"
-chown "$app:$app" "$install_dir/config/db.inc.php"
+chmod 400 "$install_dir/.env"
+chown "$app:$app" "$install_dir/.env"
 
 #=================================================
 # BUILD MOVIM
 #=================================================
 ynh_script_progression --message="Building Movim..."
 
-ynh_exec_warn_less ynh_install_composer --phpversion="$phpversion" --workdir="$install_dir"
-ynh_exec_warn_less ynh_composer_exec --phpversion="$phpversion" --workdir="$install_dir" --commands="config --global discard-changes true --quiet"
-ynh_exec_warn_less ynh_composer_exec --phpversion="$phpversion" --workdir="$install_dir" --commands="update --no-interaction --quiet"
-ynh_exec_warn_less ynh_composer_exec --phpversion="$phpversion" --workdir="$install_dir" --commands="movim:migrate --quiet"
+ynh_exec_warn_less ynh_install_composer
+
+ynh_exec_warn_less ynh_composer_exec --commands="config --global discard-changes true --quiet"
+ynh_exec_warn_less ynh_composer_exec --commands="update --no-interaction --quiet"
+ynh_exec_warn_less ynh_composer_exec --commands="movim:migrate --quiet"
 
 #=================================================
 # 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"
+ynh_add_fpm_config
 
-# Create a dedicated NGINX config
 ynh_add_nginx_config
 
-# Create a dedicated systemd config
 ynh_add_systemd_config
-yunohost service add "$app" --description="Responsive web-based XMPP client"
+yunohost service add "$app" --description="Responsive web-based XMPP client" --log="/var/log/$app/$app.log"
 
 #=================================================
 # START SYSTEMD SERVICE