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Common mistakes using Kubernetes
Common Kubernetes mistakes: missing resource limits, misconfigured probes, no ingress controller, wrong autoscaling, weak RBAC, missing anti-affinity and PDBs.
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Reverse Engineering the Source Code of the BioNTech/Pfizer SARS-CoV-2 Vaccine
Translations: ελληνικά / عربى / 中文 (Weixin video, Youtube video) / 粵文 / bahasa Indonesia / český / Català / český / Deutsch / Español / 2فارسی / فارسی / Français / עִברִית / Hrvatski / Italiano / Magyar / Nederlands / 日本語 / 日本語 2 / नेपाली / Polskie / русский / Português / Română / Slovensky / Slovenščina / Srpski /…
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Build a real-time Twitter clone with LiveView and Phoenix 1.5
With the Phoenix v1.5 release, learn how easy LiveView makes it to build interactive, real-time applications.
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The original source code of Microsoft GW-BASIC from 1983
We are excited to announce the open-sourcing of Microsoft's GW-BASIC on GitHub!
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Xi-Editor Retrospective
A bit more than four years ago I started the xi-editor project. Now I have placed it on the back burner (though there is still some activity from the open source community). The original goal was to deliver a very high quality editing experience. To this end, the project spent a rather large number of “novelty…
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A possible new back end for Rust
So typically when you want to make your own compiled language you need a compiler to.. well.. compile it into something useful. Then making it work across a wide range of operating systems and CPU architectures is a huge effort, let alone having it be performant. This is where LLVM comes in.
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How to publish Git repos that cannot be republished to GitHub
So here's an interesting thing. Certain commit hashes are rapidly heading toward being illegal on Github .
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The most remarkable legacy system I have seen
There was one remarkable legacy system when I was working in a bank sometime back. This could be summarized as an internal AWS lambda equivalent. The offering was complete with full CI, CD, unit te…
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Moving from Macbook to Linux
The year of the Linux desktop has arrived. This is a guide for how to improve the Linux desktop experience.
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RBS, Ruby’s new type signature language
Introducing RBS, Ruby’s new type signature language
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There Are No Bugs, Just TODOs
One of my life’s traumas is the bug trackers, the issue trackers, the project management tools. The toolset that completes the version control log to form the development equivalent of double-entry bookkeeping .
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Pandas 1.0
These are the changes in pandas 1.0.0. See Release notes for a full changelog including other versions of pandas.
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A Theory of Software Architecture
Take Uncle Bob's Clean Architecture and map its correspondences with Gary Bernhardt's thin imperative shell around a functional core, and you get an understanding of how to cheaply maintain and scale software! This is what Mr. Brandon Rhodes did. It's not every day that I find such clear insight. I …
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Fun with IP address parsing
A quick rundown of the many text representations of IP addresses.
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Writing Safe Shell Scripts (2019)
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Unit Testing Is Overrated
The importance of testing in modern software development is really hard to overstate. Delivering a successful product is not something you do once and forget about, but is rather a continuous and recurring process. With every line of code that changes,…
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Guide to Python Debugging
<p> Even if you write clear and readable code, even if you cover your code with tests, even if you are very experienced developer, weird bugs will inevitab...
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The Hardest Program I've Ever Written – How a code formatter works (2015)
The hardest program I’ve ever written, once you strip out the whitespace, is 3,835 lines long. That handful of code took me almost a year to write. Granted, that doesn’t take into account the code that didn’t make it. The commit history shows that I deleted 20,704 lines of code over that time. Every surviving line has…
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Moving from TypeScript to Rust / WebAssembly
My experience with both languages.
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Zulip 3.0: Threaded Open Source Team Chat
We’re excited to announce the release of Zulip Server 3.0, containing hundreds of new features and bug fixes to help distributed and remote teams stay productive and focused. Zulip is the open-source threaded team chat app, used by thousands of teams globally. Zulip’s unique topic-based threading experience …
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Ruby on Rails in a week
I had 7 days to learn Ruby on Rails. I often think about approaches to learning, and it was time to put my ideas into practice.
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Build tools around workflows, not workflows around tools
While I was there, I thought a lot about tools – mechanical tools, software tools, tools that last, and tools that are fragile. The somber snow-covered scenery made me think about how quickly most of the tools we use today get outdated or replaced, and I thought about the kinds of tools that I’ve been building for…
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Minimal safe Bash script template
A minimal template for a safe Bash script. It includes error handling, parameter parsing, and cleanup.
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It's not what programming languages do, it's what they shepherd you to
How many of you have listened, read or taken part in a discussion about programming languages that goes like the following: Person A: "Pro...
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How to Run a Live Coding Stream on Twitch Using OBS
If you’re reading this post, you might be interested in trying your hand at live coding on stream, as a way of sharing your projects in a more relatable, immediate way than a polished blog post, teaching others about programming, or just as a way to have fun. I think that live coding and streams in general are an…
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Why AWS loves Rust, and how we’d like to help
One of the most exciting things about the Rust programming language is that it makes infrastructure incredibly boring. That’s not a bad thing, in this case. No one wants their electrical wiring to be exciting; most of us prefer the safety that comes with being able to flip a switch and have light to see […]