(Ab)using technology for fun & profit.
Visit kerkour.com → RSS feedOn Hacker News Feb 2021 – Apr 2026
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Supply chains attacks are all the rage these days, whether to deliver RATs, cryptocurrencies miners, or credential stealers. In Rust, packages are called crates and are (most of the time) hosted on a central repository: https://crates.io for better discoverability. We are going to study 8 techniques to achieve Remote…
SQLite is fast, really fast. On a single ~40€ / m commodity server, it can sustain ~168,000 reads and ~8000 writes per second, concurrently. Because it's an embedded library designed for client-side applications such as embedded systems and phone & desktop applications, SQLite databases have to be co-located…
In September 2021, Cloudflare took the tech world by storm by announcing R2: a storage service accessible through the ubiquitous S3 API but that didn't charge any egress ("bandwidth") fees. You only pay for storage and read/write/delete requests. It was a major kick in the incumbents' balls who all…
I used to be a pathological overthinker. Everything had to be carefully planned, from the words I would say to the baker to order a baguette to all the insignificant details of any of the projects I worked on. Is it better to tweet at 18:00 or 18:05? Rust or
I used to be a pathological overthinker. Everything had to be carefully planned, from the words I would say to the baker to order a baguette to all the insignificant details of any of the projects I worked on. Is it better to tweet at 18:00 or 18:05? Rust or
I love Rust and I love SQLite, so you can guess. Iwas pretty excited when I lerned that "SQLite was rewritten in Rust" What is SQLite, actually? 2 things: a
Like a lot of people, I used to be a pathological maximalist. A phone with more features is necessarily better, a company with more people is better, a program with more lines of code is better, a house with more stuff is better. Until the day when reality hit me
This article is an excerpt of my new book Cloudflare for Speed and Security where you will learn, among other things, how networking works in order to create fast, secure and scalable applications. If you are not overspending on compute (like many companies do because of "scale") then your biggest
An essential part of being able to say "I told you so" is in fact having told you so. Well, here we are. For those living under a rock (lucky
There is this growing sentiment in tech that stacking more and more layers of complexity to reach the sacrosanct "infinite scalability" is not the way forward. First, because it rarely materializes: you need a lot of other things than fancy tech to reach millions of people. Second, because the tradeoffs
From the Linux kernel to Firefox and Wordpress, Open Source is changing the world for the better. But how to achieve financial sustainability when you produce something that can legally be copied, by design, at zero cost? Revenue models for Open Source A lot has been written about achieving profitability
I've recently tasted AMD Zen 5 CPUs (AWS' m8a instances) and... Whooaaa. Even before talking about GPUs and NPUs, the next 5 years of CPUs will be very exciting! For
Whether it be with React, VueJS, Angular, or in Rust, modern web applications are composed of 3 kinds of pieces: Components Pages Service Components are reusable pieces and UI elements. An input field, or a button, for example. Pages are assemblies of components. They match routes (URLs). For example, the