present a simple way of looking at what Git really is and what it really does. I do not claim that this way of looking at Git represents absolute “facts” in any hard and fast or literal sense. But I contend that if you conceive of Git in the way that I’m going to suggest, if you substitute these conceptions of Git for any misconceptions you might have now, you’ll be a much happier and more fluid Git user.

We work with JSON all day long. jq is a populater tool to helps extract and transform JSON, think of awk/seed but for JSON. In this article, , Adam’s going to go over the basics building blocks of jq in enough depth that you will be able to understand how jq works

The knapsack problem: how to use limited luggage space to pack only and all the items you’re most likely to need? Enter PostgreSQL! Come and find out how to use the world’s best open source database to help you pack.

Private Relay is an attempt by Apple to change the way traffic is routed from user to internet service and back. Kind of like a proxy. They used CGNAT behinds the scene.

Virtual Machines (VMs) are a magical thing: a computer being emulated inside a physical computer. Since this emulated computer isn’t physical, we call it “virtual”. Such a simple description for something so powerful. If you just want to see the final source code, here is the repo. It’s ver approachable.

When server is on fire, what tool you reach to view metrics, or what metrics to look at? This is a rough post to share this old but good case study of using these tools, and to help justify their further development. No editing, spell checking, or comment

Amazon uses LFS similarity search to compare customers, finding new product recommendations based on the purchasing history of their highest-similarity customers. Every time you use Google, you perform a similarity search between your query/search term — and Google’s indexed internet. In this article, we learn a practical way to impelemt that.

There is a lot of confusion about floating-point numbers and a lot of bad advice going around. IEEE-754 floating-point numbers are a complex beast[1], and comparing them is not always easy, but in this post, we will take a look at different approaches and their tradeoffs.

Not really an technical article but I found it’s super interesting and show us how complicate chip production is. I also learn that our transistors are even smaller than a virus.