protected function getDockerComposeFiles()
    {
        $files = [
            'docker-compose.yml',
        ];
        $root = ProjectX::projectRoot();

        // Add docker compose dev configurations.
        $path = "{$root}/docker-compose-dev.yml";
        if ($this->hasDockerSync()
            && $this->useDockerSync && file_exists($path)) {
            $files[] = $path;
        }

        return $files;
    }