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ESPRESSO FRIDAYS

Every once in a while I send hand picked things I've learned. Kind of like your filter to the tech internet. No spam, I promise!

Featured Post

Git Blame Can Do More

Hi Friends, Today, we’re diving into the often under-appreciated git blame. Often used to find out who last modified a line of code, git blame has several powerful features. Let’s explore some of these hidden gems, particularly focusing on the flags: -w -C -C -C -C -C -C blame -C -C -C ignores code movements across the entire history Ignoring Whitespace with the -w Flag Do you know the annoying blame results showing over an indent or a space removed / added? "-w" fixes that! git blame -w...

5 days ago • 1 min read

Hi friends, This is the story of how one mysterious hacker, took advantage of an inactive negligible library in Linux, and the maintainers emotional stress. Slowly, week after week, bit by bit lines of seemingly random testing code were added, in front of everyone’s eyes, to the Linux upstream. Thanks to one curious developer, who had an itch because of a tiny lag in his login process, sending him deep into the rabbit hole of Linux SSH and the mystic world of ZX, we would have never heard of...

12 days ago • 6 min read

Hi friends, You know how companies use merge commits when working on projects? Just go to one of your work projects and checkout the history of the main branch. It may look tidy (or not) but it’s bad for the environment (the real-world one 😉) Lots of merge commits While that’s pretty standard, it actually makes things messy. Every time we do this, it stops us from keeping our commit history nice and clean all the way through from development to production. Here’s why that’s a bit of a...

19 days ago • 2 min read

Hi friends, If you had asked me about the future of DevOps / infrastructure a few years ago, I would’ve pointed straight to serverless. I don’t think that anymore. After this week’s Kubecon in Paris (amazing event by the way!), here’s a collection of thoughts and prediction on the future of tech. The morning of the 3rd day at Kubecon Paris (21/03/24) While serverless was a big deal, the rise of container technology and Kubernetes has been astonishing, even the biggest advocates of the...

26 days ago • 1 min read

Hi friends, For eight years, I’ve been interviewing engineers for different positions. I compiled a list of questions I think every engineer, especially the experienced ones, should be able to answer pretty easily. Here is the list, with each question followed by what I expect: System Architecture This can be a generic “here’s our product, describe the architecture” type of question. But what I like to do, is use it as a followup to them describing the last place they worked at. If they can...

about 1 month ago • 3 min read

Hi friends, AWS is sometimes looked at as a money black hole where you’ll burn your cash the second you sign up. In a way, that’s not wrong. Interestingly, there's also a group of people who dive right in and only realize the expenses when they see their monthly bill. It doesn’t have to be this way AWS can be used at no cost, or if not entirely free, then for minimal expenses. Stating the obvious When you join, AWS enrolls you in their free tier, allowing you to use certain databases, compute...

about 1 month ago • 3 min read

Hi friends, Today, I want to share a powerful skill with you. If you choose to embrace it—and there are countless ways to do so—you’ll see growth in every aspect of your life. Yes, it’s that impactful. "Writing is magic, as much the water of life as any other creative art. The water is free. So drink. Drink and be filled up." - Stephen King Early in my career, my first mentor taught me about a valuable skill: writing. He convinced me that this one skill could benefit me, and everyone else, in...

about 2 months ago • 2 min read

Hi friends, Benjamin Franklin once said: “For every minute spent organizing, an hour is earned.” This applies not only to life but also to work, and more specifically to digital workspaces. It sounds simplistic, but as with most things, it’s easier said than done. A lot of my content revolves around productivity and the importance of organizing knowledge. A huge part of tool-belt when it comes to organizing my environment is Tmux. There are lots of reasons for why Tmux is my choice, even over...

about 2 months ago • 1 min read

Hi friends, Here's a quote from Deep Work which I'm 30% through the second reading round: “Focus intensifies by getting used to NOT being distracted. And can improve with practice.” - “Deep Work”, Cal Newport An MIT recent study shows that when the brain forms memories or learns a new task, it encodes the new information by adjusting connections between neurons. They also remind of the principle of “neurons that fire together, wire together”, proposed by Donald Hebb in the 1940s. This is...

2 months ago • 3 min read

Hi! Today I want to share a security researching flow Disclaimer: I am not a security expert. Disclaimer II: Every story and example shown here were either made with Prior consent My own systems As part of a VDP (vulnerability disclosure) The WHAT For the next magic trick you’re going to need - A browser - A proxy - A pair of eyes Easy, right? I’m assuming most readers have at least 2/3 but never made them work together to get an insight into how their browser interacts with the internet. The...

3 months ago • 2 min read
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