protected function _write($event)
 {
     if (!empty($this->priorities[$event['priority']])) {
         $level = $this->priorities[$event['priority']];
     } else {
         $level = \Monolog\Logger::INFO;
     }
     $message = sprintf('%s (line %s in %s)', $event['message']['errstr'], $event['message']['errline'], $event['message']['errfile']);
     $context = [];
     if (!empty($event['info'])) {
         $context = $event['info'];
     }
     $this->monolog->log($level, $message, $context);
 }
<?php

require __DIR__ . "/../vendor/autoload.php";
$logger = new \Monolog\Logger('Linux');
$handler = new \Mibou\Monolog\Handler\NotifySendHandler();
$formatter = new \Mibou\Monolog\Formatter\DesktopFormatter(null, 'd/m/Y H:i:s');
$handler->setFormatter($formatter);
$logger->pushHandler($handler);
$logger->log(\Monolog\Logger::INFO, 'Hello amazing Open Source world !');