<?php

namespace Deployer;

require 'recipe/composer.php';

set('application', '');
set('repository', 'git@');
set('remote_user', 'deploy');
set('git_tty', true);

host('production')
  ->set('labels', ['stage' => 'production'])
  ->set('hostname', '')
  ->set('branch', 'main')
  ->set('deploy_path', '/var/www')
  ->set('http_user', 'www');

add('shared_dirs', [
  'web/sites/default/files',
]);

set('writable_dirs', [
  'web/sites/default/files',
]);

after('deploy:failed', 'deploy:unlock');

...
[production]  error  in writable.php on line 122:
[production] run cd /var/www/releases/2 && (setfacl -L  -m u:"www":rwX -m u:deploy:rwX web/sites/default/files)
[production] err setfacl: Option -m: Invalid argument near character 3
[production] exit code 2 (Misuse of shell builtins)