diff --git a/helpers/helpers.v2.1.d/php b/helpers/helpers.v2.1.d/php
index d32e69392..7371f585e 100644
--- a/helpers/helpers.v2.1.d/php
+++ b/helpers/helpers.v2.1.d/php
@@ -9,7 +9,7 @@ YNH_PHP_VERSION=${YNH_PHP_VERSION:-$YNH_DEFAULT_PHP_VERSION}
 #
 # usage: ynh_add_fpm_config
 #
-# Case 1 (recommended) : your provided a snippet conf/extra_php-fpm.conf
+# This helper assumes the app has an conf/extra_php-fpm.conf snippet
 #
 # The actual PHP configuration will be automatically generated, 
 # and your extra_php-fpm.conf will be appended (typically contains PHP upload limits)
@@ -26,25 +26,6 @@ YNH_PHP_VERSION=${YNH_PHP_VERSION:-$YNH_DEFAULT_PHP_VERSION}
 # Otherwise, if you want the user to have control over these, we encourage to create a config panel 
 # (which should ultimately be standardized by the core ...)
 #
-# Case 2 (deprecate) : you provided an entire conf/php-fpm.conf
-#
-# The configuration will be hydrated, replacing __FOOBAR__ placeholders with $foobar values, etc.
-#
-# The resulting configuration will be deployed to the appropriate place, /etc/php/$phpversion/fpm/pool.d/$app.conf
-#
-# ----------------------
-# 
-# fpm_footprint: Memory footprint of the service (low/medium/high).
-# low    - Less than 20 MB of RAM by pool.
-# medium - Between 20 MB and 40 MB of RAM by pool.
-# high   - More than 40 MB of RAM by pool.
-# N      - Or you can specify a quantitative footprint as MB by pool (use watch -n0.5 ps -o user,cmd,%cpu,rss -u APP)
-#
-# fpm_usage: Expected usage of the service (low/medium/high).
-# low    - Personal usage, behind the SSO.
-# medium - Low usage, few people or/and publicly accessible.
-# high   - High usage, frequently visited website.
-#
 # The footprint of the service will be used to defined the maximum footprint we can allow, which is half the maximum RAM.
 # So it will be used to defined 'pm.max_children'
 # A lower value for the footprint will allow more children for 'pm.max_children'. And so for
@@ -69,52 +50,15 @@ YNH_PHP_VERSION=${YNH_PHP_VERSION:-$YNH_DEFAULT_PHP_VERSION}
 # Requires YunoHost version 4.1.0 or higher.
 ynh_add_fpm_config() {
     # ============ Argument parsing =============
-    local _globalphpversion=${phpversion-:}
-    local -A args_array=([v]=phpversion= [u]=usage= [f]=footprint= [g]=group=)
+    local -A args_array=([g]=group=)
     local group
-    local phpversion
-    local usage
-    local footprint
     ynh_handle_getopts_args "$@"
     group=${group:-}
     # ===========================================
 
-    # The default behaviour is to use the template.
-    local autogenconf=false
-    usage="${usage:-}"
-    footprint="${footprint:-}"
-    if [ -n "$usage" ] || [ -n "$footprint" ] || [[ -e $YNH_APP_BASEDIR/conf/extra_php-fpm.conf ]]; then
-        autogenconf=true
-
-        # If no usage provided, default to the value existing in setting ... or to low
-        local fpm_usage_in_setting=$(ynh_app_setting_get --key=fpm_usage)
-        if [ -z "$usage" ]
-        then
-            usage=${fpm_usage_in_setting:-low}
-            ynh_app_setting_set --key=fpm_usage --value=$usage
-        fi
-
-        # If no footprint provided, default to the value existing in setting ... or to low
-        local fpm_footprint_in_setting=$(ynh_app_setting_get --key=fpm_footprint)
-        if [ -z "$footprint" ]
-        then
-            footprint=${fpm_footprint_in_setting:-low}
-            ynh_app_setting_set --key=fpm_footprint --value=$footprint
-        fi
-
-    fi
-
-    # Set the default PHP-FPM version by default
-    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
-        phpversion="${phpversion:-$YNH_PHP_VERSION}"
-    else
-        phpversion="${phpversion:-$_globalphpversion}"
-    fi
-
-    local old_phpversion=$(ynh_app_setting_get --key=phpversion)
-
     # If the PHP version changed, remove the old fpm conf
     # (NB: This stuff is also handled by the apt helper, which is usually triggered before this helper)
+    local old_phpversion=$(ynh_app_setting_get --key=phpversion)
     if [ -n "$old_phpversion" ] && [ "$old_phpversion" != "$phpversion" ]; then
         local old_php_fpm_config_dir=$(ynh_app_setting_get --key=fpm_config_dir)
         local old_php_finalphpconf="$old_php_fpm_config_dir/pool.d/$app.conf"
@@ -136,20 +80,12 @@ ynh_add_fpm_config() {
     ynh_app_setting_set --key=fpm_service --value="$fpm_service"
     ynh_app_setting_set --key=phpversion --value=$phpversion
 
-    if [ $autogenconf == "false" ]; then
-        # Usage 1, use the template in conf/php-fpm.conf
-        local phpfpm_path="$YNH_APP_BASEDIR/conf/php-fpm.conf"
-        # Make sure now that the template indeed exists
-        [ -e "$phpfpm_path" ] || ynh_die --message="Unable to find template to configure PHP-FPM."
-    else
-        # Usage 2, generate a PHP-FPM config file with ynh_get_scalable_phpfpm
+    # Define the values to use for the configuration of PHP.
+    ynh_get_scalable_phpfpm
 
-        # Define the values to use for the configuration of PHP.
-        ynh_get_scalable_phpfpm --usage=$usage --footprint=$footprint
-
-        local phpfpm_group=$([[ -n "$group" ]] && echo "$group" || echo "$app")
-        local phpfpm_path="$YNH_APP_BASEDIR/conf/php-fpm.conf"
-        echo "
+    local phpfpm_group=$([[ -n "$group" ]] && echo "$group" || echo "$app")
+    local phpfpm_path="$YNH_APP_BASEDIR/conf/php-fpm.conf"
+    echo "
 [__APP__]
 
 user = __APP__
@@ -167,23 +103,22 @@ pm.max_requests = 500
 request_terminate_timeout = 1d
 " >"$phpfpm_path"
 
-        if [ "$php_pm" = "dynamic" ]; then
-            echo "
+    if [ "$php_pm" = "dynamic" ]; then
+        echo "
 pm.start_servers = __PHP_START_SERVERS__
 pm.min_spare_servers = __PHP_MIN_SPARE_SERVERS__
 pm.max_spare_servers = __PHP_MAX_SPARE_SERVERS__
 " >>"$phpfpm_path"
 
-        elif [ "$php_pm" = "ondemand" ]; then
-            echo "
+    elif [ "$php_pm" = "ondemand" ]; then
+        echo "
 pm.process_idle_timeout = 10s
 " >>"$phpfpm_path"
-        fi
+    fi
 
-        # Concatene the extra config.
-        if [ -e $YNH_APP_BASEDIR/conf/extra_php-fpm.conf ]; then
-            cat $YNH_APP_BASEDIR/conf/extra_php-fpm.conf >>"$phpfpm_path"
-        fi
+    # Concatene the extra config.
+    if [ -e $YNH_APP_BASEDIR/conf/extra_php-fpm.conf ]; then
+        cat $YNH_APP_BASEDIR/conf/extra_php-fpm.conf >>"$phpfpm_path"
     fi
 
     local finalphpconf="$fpm_config_dir/pool.d/$app.conf"
@@ -206,17 +141,6 @@ pm.process_idle_timeout = 10s
 ynh_remove_fpm_config() {
     local fpm_config_dir=$(ynh_app_setting_get --key=fpm_config_dir)
     local fpm_service=$(ynh_app_setting_get --key=fpm_service)
-    # Get the version of PHP used by this app
-    local phpversion=$(ynh_app_setting_get --key=phpversion)
-
-    # Assume default PHP-FPM version by default
-    phpversion="${phpversion:-$YNH_DEFAULT_PHP_VERSION}"
-
-    # Assume default PHP files if not set
-    if [ -z "$fpm_config_dir" ]; then
-        fpm_config_dir="/etc/php/$YNH_DEFAULT_PHP_VERSION/fpm"
-        fpm_service="php$YNH_DEFAULT_PHP_VERSION-fpm"
-    fi
 
     ynh_secure_remove --file="$fpm_config_dir/pool.d/$app.conf"
     ynh_systemd_action --service_name=$fpm_service --action=reload
@@ -226,8 +150,8 @@ ynh_remove_fpm_config() {
 #
 # [internal]
 #
-# usage: ynh_get_scalable_phpfpm --usage=usage --footprint=footprint [--print]
-# | arg: -f, --footprint=       - Memory footprint of the service (low/medium/high).
+# usage: ynh_get_scalable_phpfpm
+# Footprint can be defined via the "fpm_footprint", to be set prior to calling this helper
 # low    - Less than 20 MB of RAM by pool.
 # medium - Between 20 MB and 40 MB of RAM by pool.
 # high   - More than 40 MB of RAM by pool.
@@ -235,24 +159,24 @@ ynh_remove_fpm_config() {
 # To have this value, use the following command and stress the service.
 # watch -n0.5 ps -o user,cmd,%cpu,rss -u APP
 #
-# | arg: -u, --usage=           - Expected usage of the service (low/medium/high).
+# Usage can be defined via the "fpm_usage", to be set prior to calling this helper
 # low    - Personal usage, behind the SSO.
 # medium - Low usage, few people or/and publicly accessible.
 # high   - High usage, frequently visited website.
 #
-# | arg: -p, --print            - Print the result (intended for debug purpose only when packaging the app)
 ynh_get_scalable_phpfpm() {
-    # ============ Argument parsing =============
-    local -A args_array=([u]=usage= [f]=footprint= [p]=print)
-    local usage
-    local footprint
-    local print
-    ynh_handle_getopts_args "$@"
-    # Set all characters as lowercase
-    footprint=${footprint,,}
-    usage=${usage,,}
-    print=${print:-0}
 
+    # If no usage provided, default to the value existing in setting ... or to low
+    local fpm_usage_in_setting=$(ynh_app_setting_get --key=fpm_usage)
+    local usage=${fpm_usage_in_setting:-low}
+    ynh_app_setting_set --key=fpm_usage --value=$usage
+
+    # If no footprint provided, default to the value existing in setting ... or to low
+    local fpm_footprint_in_setting=$(ynh_app_setting_get --key=fpm_footprint)
+    local footprint=${fpm_footprint_in_setting:-low}
+    ynh_app_setting_set --key=fpm_footprint --value=$footprint
+
+    # Set all characters as lowercase
     if [ "$footprint" = "low" ]; then
         footprint=20
     elif [ "$footprint" = "medium" ]; then
@@ -364,27 +288,19 @@ YNH_COMPOSER_VERSION=${YNH_COMPOSER_VERSION:-$YNH_DEFAULT_COMPOSER_VERSION}
 
 # Execute a command with Composer
 #
-# usage: ynh_composer_exec [--phpversion=phpversion] [--workdir=$install_dir] --commands="commands"
-# | arg: -v, --phpversion - PHP version to use with composer
+# usage: ynh_composer_exec [--workdir=$install_dir] --commands="commands"
 # | arg: -w, --workdir - The directory from where the command will be executed. Default $install_dir or $final_path
 # | arg: -c, --commands - Commands to execute.
 #
 # Requires YunoHost version 4.2 or higher.
 ynh_composer_exec() {
     # ============ Argument parsing =============
-    local _globalphpversion=${phpversion-:}
-    local -A args_array=([v]=phpversion= [w]=workdir= [c]=commands=)
-    local phpversion
+    local -A args_array=([w]=workdir= [c]=commands=)
     local workdir
     local commands
     ynh_handle_getopts_args "$@"
     workdir="${workdir:-${install_dir:-$final_path}}"
-
-    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
-        phpversion="${phpversion:-$YNH_PHP_VERSION}"
-    else
-        phpversion="${phpversion:-$_globalphpversion}"
-    fi
+    # ===========================================
 
     COMPOSER_HOME="$workdir/.composer" COMPOSER_MEMORY_LIMIT=-1 \
         php${phpversion} "$workdir/composer.phar" $commands \
@@ -393,42 +309,25 @@ ynh_composer_exec() {
 
 # Install and initialize Composer in the given directory
 #
-# usage: ynh_install_composer [--phpversion=phpversion] [--workdir=$install_dir] [--install_args="--optimize-autoloader"] [--composerversion=composerversion]
-# | arg: -v, --phpversion - PHP version to use with composer
+# usage: ynh_install_composer [--workdir=$install_dir] [--install_args="--optimize-autoloader"]
 # | arg: -w, --workdir - The directory from where the command will be executed. Default $install_dir.
 # | arg: -a, --install_args - Additional arguments provided to the composer install. Argument --no-dev already include
-# | arg: -c, --composerversion - Composer version to install
 #
 # Requires YunoHost version 4.2 or higher.
 ynh_install_composer() {
     # ============ Argument parsing =============
-    local _globalphpversion=${phpversion-:}
-    local -A args_array=([v]=phpversion= [w]=workdir= [a]=install_args= [c]=composerversion=)
-    local phpversion
+    local -A args_array=([w]=workdir= [a]=install_args=)
     local workdir
     local install_args
-    local composerversion
     ynh_handle_getopts_args "$@"
     # ===========================================
 
-    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
-        workdir="${workdir:-$final_path}"
-    else
-        workdir="${workdir:-$install_dir}"
-    fi
-
-    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
-        phpversion="${phpversion:-$YNH_PHP_VERSION}"
-    else
-        phpversion="${phpversion:-$_globalphpversion}"
-    fi
-
+    workdir="${workdir:-$install_dir}"
     install_args="${install_args:-}"
-    composerversion="${composerversion:-$YNH_COMPOSER_VERSION}"
 
     curl -sS https://getcomposer.org/installer \
         | COMPOSER_HOME="$workdir/.composer" \
-            php${phpversion} -- --quiet --install-dir="$workdir" --version=$composerversion \
+            php${phpversion} -- --quiet --install-dir="$workdir" --version=$YNH_COMPOSER_VERSION \
         || ynh_die --message="Unable to install Composer."
 
     # install dependencies