<p>This week's featured links:</p>
<ul>
<li><a target="_blank" href="https://medium.com/partha-pratim-sanyal/system-design-doordash-a-prepared-food-delivery-service-bf44093388e2">DoorDash food delivery service system design</a></li>
<li><a target="_blank" href="https://towardsdatascience.com/how-the-amazon-go-store-works-a-deep-dive-3fde9d9939e9">How the Amazon Go store works</a></li>
<li><a target="_blank" href="https://hackernoon.com/how-to-build-a-saas-with-0-fed2341078c8">How to build a SaaS with 0$</a></li>
</ul>


This week's featured links:

-  [DoorDash food delivery service system design](https://medium.com/partha-pratim-sanyal/system-design-doordash-a-prepared-food-delivery-service-bf44093388e2)
-  [How the Amazon Go store works](https://towardsdatascience.com/how-the-amazon-go-store-works-a-deep-dive-3fde9d9939e9)
-  [How to build a SaaS with 0$](https://hackernoon.com/how-to-build-a-saas-with-0-fed2341078c8)

Emerging Tech Blog

Emerging Tech Blog

Weekly Tech Update #21

17 Oct - 23 Oct 2021