See these comments: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10394403" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10394403</a><p>If you tell us more about your needs, we could give more tailored recommendations.