Beyond exception handling, there's something else I see people struggling with, which is logging. Most people don't know what to log, so they decide to log anything thinking it might be better than nothing, and end up creating just noise. Noise is a piece of information that doesn't help you or your team understand what's going on or resolving a problem. Furthermore, I feel people are uncertain ab
> BTC: bc1qs0sq7agz5j30qnqz9m60xj4tt8th6aazgw7kxr ETH: 0x1D834755b5e889703930AC9b784CB625B3cd833E USDT(Tron): TPrCq8LxGykQ4as3o1oB8V7x1w2YPU2o5n Ton: UQAtBuFWI3H_LpHfEToil4iYemtfmyzlaJpahM3tFSoxomYQ Doge: D7GMQdKhKC9ymbT9PtcetSFTQjyPRRfkwTdismiss OOP: the worst thing that happened to programming [2/24/2025] In this article, we will try to understand why OOP is the worst thing that happened to prog
A few months ago, I set myself the challenge of writing a C compiler in 500 lines of Python1, after writing my SDF donut post. How hard could it be? The answer was, pretty hard, even when dropping quite a few features. But it was also pretty interesting, and the result is surprisingly functional and not too hard to understand! There's too much code for me to comprehensively cover in a single blog
Skills are custom instructions that extend Claude's capabilities for specific tasks or domains. When you create a skill via a SKILL.md file, you're teaching Claude how to handle specific scenarios more effectively. The power of skills lies in their ability to encode institutional knowledge, standardize outputs, and handle complex multi-step workflows that would otherwise require repeated explanati
Rewriting the Ruby parser
At Shopify, we have spent the last year writing a new Ruby parser, which we’ve called YARP (Yet Another Ruby Parser). As of the date of this post, YARP can parse a semantically equivalent syntax tree to Ruby 3.3 on every Ruby file in Shopify’s main codebase, GitHub’s main codebase, CRuby, and the 100 most popular gems downloaded from rubygems.org. We recently got approval to merge this work into C
Golang Mini Reference 2022: A Quick Guide to the Modern Go Programming Language (REVIEW COPY)
Golang Mini Reference 2022 A Quick Guide to the Modern Go Programming Language (REVIEW COPY) Harry Yoon Version 0.9.0, 2022-08-24 REVIEW COPY This is review copy, not to be shared or distributed to others. Please forward any feedback or comments to the author. • feedback@codingbookspress.com The book is tentatively scheduled to be published on September 14th, 2022. We hope that when the release da
Version 1.108 is now available! Read about the new features and fixes from December. Release date: June 12, 2025 Security update: The following extension has security updates: ms-python.python. Update 1.101.1: The update addresses these issues. Update 1.101.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome t
I Made Zig Compute 33 Million Satellite Positions in 3 Seconds. No GPU Required.
Update: I've since added multithreading and pushed astroz to 326M propagations/sec. Read the follow-up → I've spent the past month optimizing SGP4 propagation and ended up with something interesting: astroz is now the fastest general purpose SGP4 implementation I'm aware of, hitting 11-13M propagations per second in native Zig and ~7M/s through Python with just pip install astroz. This post breaks
Parsing SQL - Strumenta
The code for this tutorial is on GitHub: parsing-sql SQL is a language to handle data in a relational database. If you worked with data you have probably worked with SQL. In this article we will talk about parsing SQL. It is in the same league of HTML: maybe you never learned it formally but you kind of know how to use it. That is great because if you know SQL, you know how to handle data. However
Agentic GraphRAG for Commercial Contracts | Towards Data Science
In every business, legal contracts are foundational documents that define the relationships, obligations, and responsibilities between parties. Whether it’s a partnership agreement, an NDA, or a supplier contract, these documents often contain critical information that drives decision-making, risk management, and compliance. However, navigating and extracting insights from these contracts can be a
Over the course of my Spring 2020 semester at Harvey Mudd College, I developed a self-hosting compiler entirely from scratch. This article walks through many interesting parts of the project. It’s laid out so you can just read from beginning to end, but if you’re more interested in a particular topic, feel free to jump there. Or, take a look at the project on GitHub. Table of contents What the pro
A Walk with LuaJIT
The following is a chronicle of implementing a general purpose zero-instrumentation BPF based profiler for LuaJIT. Some assumptions are made about what this entails and it may be helpful to read some of our other work in this area. One major change from prior efforts is that instead of working with the original Parca unwinder we are now working with the OpenTelemetry eBPF profiler. If you missed t
こんにちは。Fintech SREの佐藤隆広(@T)です。 この記事は、Merpay & Mercoin Tech Openness Month 2025 の11日目の記事です。 Google社が提唱し、Site Reliability Engineering Bookによって広く知られるようになったSREの信頼性マネジメントは、開発と運用の関係性を再定義し、SLI/SLOとエラーバジェットに始まり、Availability・Latency・エラーレート・トラフィック・リソース飽和度・耐久性といったような指標で補強されてきました。 ところが近年、大規模言語モデル（LLM）の進歩が著しく、サービスにLLMを利用する機会が増えることによって、 プロンプトを数行変えただけで回答品質が変動する Latencyやエラーレートが良好でも幻覚（ハルシネーション）が急増する モデルの軽微なアップデートで回
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Edge AI Just Got Faster
When Meta released LLaMA back in February, many of us were excited to see a high-quality Large Language Model (LLM) become available for public access. Many of us who signed up however, had difficulties getting LLaMA to run on our edge and personal computer devices. One month ago, Georgi Gerganov started the llama.cpp project to provide a solution to this, and since then his project has been one o
Version 1.108 is now available! Read about the new features and fixes from December. Release date: May 8, 2025 Update: Enable Next Edit Suggestions (NES) by default in VS Code Stable (more...). Update 1.100.1: The update addresses these security issues. Update 1.100.2: The update addresses these issues. Update 1.100.3: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Univers
Date: June 23, 2023 | Estimated Reading Time: 31 min | Author: Lilian Weng Building agents with LLM (large language model) as its core controller is a cool concept. Several proof-of-concepts demos, such as AutoGPT, GPT-Engineer and BabyAGI, serve as inspiring examples. The potentiality of LLM extends beyond generating well-written copies, stories, essays and programs; it can be framed as a powerfu
Solving Quantitative Reasoning Problems With Language Models
Solving Quantitative Reasoning Problems with Language Models Aitor Lewkowycz∗, Anders Andreassen†, David Dohan†, Ethan Dyer†, Henryk Michalewski†, Vinay Ramasesh†, Ambrose Slone, Cem Anil, Imanol Schlag, Theo Gutman-Solo, Yuhuai Wu, Behnam Neyshabur∗, Guy Gur-Ari∗, and Vedant Misra∗ Google Research Abstract Language models have achieved remarkable performance on a wide range of tasks that require
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
The Andrej Karpathy episode. Andrej explains why reinforcement learning is terrible (but everything else is much worse), why model collapse prevents LLMs from learning the way humans do, why AGI will just blend into the previous ~2.5 centuries of 2% GDP growth, why self driving took so long to crack, and what he sees as the future of education. Watch on YouTube; listen on Apple Podcasts or Spotify
New – Amazon CloudWatch Evidently – Experiments and Feature Management | Amazon Web Services
AWS News Blog New – Amazon CloudWatch Evidently – Experiments and Feature Management Update Nov 29, 2021 – This post has been modified to provide more clarity on the new service. As a developer, I am excited to announce the availability of Amazon CloudWatch Evidently. This is a new Amazon CloudWatch capability that makes it easy for developers to introduce experiments and feature management in the
Python behind the scenes #13: the GIL and its effects on Python multithreading
As you probably know, the GIL stands for the Global Interpreter Lock, and its job is to make the CPython interpreter thread-safe. The GIL allows only one OS thread to execute Python bytecode at any given time, and the consequence of this is that it's not possible to speed up CPU-intensive Python code by distributing the work among multiple threads. This is, however, not the only negative effect of
Boring Python: code quality
Boring Python: code quality December 19, 2022 Django, Python This is the second in a series of posts I intend to write about how to build, deploy, and manage Python applications in as boring a way as possible. In the first post in the series I gave a definition of what I mean by “boring”, and it’s worth revisiting: I don’t mean “reliable” or “bug-free” or “no incidents”. While there is some overla
In "Software Engineering - The Soft Parts" Addy Osmani shares lessons from his first 10 years at Google on the "soft skills" that can help engineers become effective and scale their effectiveness. This guidance should help junior, mid-career and even senior developers move forward, deal with changing technology, and navigate building non-trivial systems. Today I'll share some of the software engin
Monitoring is a Pain
And we're all doing it wrong (including me) I have a confession. Despite having been hired multiple times in part due to my experience with monitoring platforms, I have come to hate monitoring. Monitoring and observability tools commit the cardinal sin of tricking people into thinking this is an easy problem. It is very simple to monitor a small application or service. Almost none of those approac
Version 1.108 is now available! Read about the new features and fixes from December. Update 1.75.1: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the January 2023 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Profiles -
Let’s Write a Tree-Sitter Major Mode Creating a standard programming major mode presents significant challenges, with the intricate tasks of establishing proper indentation and font highlighting being among the two hardest things to get right. It's painstaking work, and it'll quickly descend into a brawl between the font lock engine and your desire for correctness. Tree-sitter makes writing many m
Published Jan 21, 2026 What we learned from three iterations of a performance engineering take-home that Claude keeps beating. Written by Tristan Hume, a lead on Anthropic's performance optimization team. Tristan designed—and redesigned—the take-home test that's helped Anthropic hire dozens of performance engineers. Evaluating technical candidates becomes harder as AI capabilities improve. A take-
Why solve a problem twice? Design patterns let you apply existing solutions to your code - Stack Overflow
The most satisfying problems in software engineering are those that no one has solved before. Cracking a unique problem is something that you can use in job interviews and talk about in conferences. But the reality is that the majority of challenges you face will have already been solved. You can use those solutions to better your own software. Software design patterns are typical solutions for th
Liberation Without Victory
In a wide-ranging conversation at his compound in Kyiv, Ukrainian President Volodymyr Zelensky tells The Atlantic what Ukraine needs to survive—and describes the price it has paid. Kyiv is halfway normal now. Burnt-out Russian tanks have been removed from the roads leading into the city, traffic lights work, the subway runs, oranges are available for purchase. A cheerful folk orchestra was perform
Mojo vision | Modular
Our vision for Mojo is to be the one programming language developers need to target diverse hardware—CPUs, GPUs, and other accelerators—using Python's intuitive syntax combined with modern systems programming capabilities. Although this vision focuses on the Mojo language, we recognize it's just one part of a larger Mojo ecosystem. When combined, the developer tools, the community, and the landsca
Python behind the scenes #11: how the Python import system works
If you ask me to name the most misunderstood aspect of Python, I will answer without a second thought: the Python import system. Just remember how many times you used relative imports and got something like ImportError: attempted relative import with no known parent package; or tried to figure out how to structure a project so that all the imports work correctly; or hacked sys.path when you couldn
An interesting twist in my recent usage of SQLite was the fact that I noticed my research scripts and the database intertwine more. SQLite is unique in that it really lives in-process, unlike standalone database servers. There is a feature to that which does not get used very frequently, but can be indispensable in some situations. By the way, the talk about the system that made me me to explore S
Right now, asyncio is one of the trendier topics in Python, and rightfully so – It’s a great way to handle I/O-bound programs! When I was learning about asyncio, It took me a while to understand how it actually worked. But later, I came to find out that it’s basically just a really nice layer on top of Python Generators. In this article, I’m going to create a simplified version of asyncio using ju
Why Today’s Python Developers Are Embracing Type Hints | Pyrefly
Python is one of the most successful programming languages out there, with it recently overtaking Javascript as the most popular language on GitHub, according to the latest GitHub Octoverse report. The report emphasises the popularity of the language in the growing fields of AI, data science and scientific computing - fields where speedy experimentation and iteration are critical, and where develo
July 13, 2022 Six Programming Languages I'd Like to See A few weird ideas for programming languages I came up with that it'd be "really" "cool" if someone made (wink) I got 1,000 words into "what, exactly, is software complexity" before remembering that this is supposed to be less effort than the blog. So instead I'm going to list some ideas I had for programming languages. I think all of these ar
Over the past decade, my work has centred on partnering with teams to build ambitious products for the web across both desktop and mobile. This has provided a ring-side seat to a sweeping variety of teams, products, and technology stacks across more than 100 engagements. While I'd like to be spending most of this time working through improvements to web APIs, the majority of time spent with partne
Cognitive load is what matters
The logo image was taken from Reddit. It is a living document, last update: May 2025. Your contributions are welcome! Introduction There are so many buzzwords and best practices out there, but most of them have failed. We need something more fundamental, something that can't be wrong. Sometimes we feel confusion going through the code. Confusion costs time and money. Confusion is caused by high co
Flipping Pages: An analysis of a new Linux vulnerability in nf_tables and hardened exploitation techniques
This blogpost is the next instalment of my series of hands-on no-boilerplate vulnerability research blogposts, intended for time-travellers in the future who want to do Linux kernel vulnerability research. Specifically, I hope beginners will learn from my VR workflow and the seasoned researchers will learn from my techniques. In this blogpost, I'm discussing a bug I found in nf_tables in the Linux
Introducing Bash for Beginners - Microsoft Open Source Blog
WRITTEN BY /en-us/opensource/blog/author/gwyneth-pena-siguenza A new Microsoft video series for developers learning how to script. According to Stack Overflow 2022 Developer Survey, Bash is one of the top 10 most popular technologies. This shouldn’t come as a surprise, given the popularity of using Linux systems with the Bash shell readily installed, across many tech stacks and the cloud. On Azure
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Logging in Python like a PRO 🐍🌴
OOP: the worst thing that happened to programming
Writing a C compiler in 500 lines of Python
How to create Skills for Claude: steps and examples | Claude
May 2025 (version 1.101)
Kalyn: a self-hosting compiler for x86-64
SRE2.0: LLMサービスの信頼性を測る新しい評価指標の紹介 | メルカリエンジニアリング
0.8.0 Release Notes ⚡ The Zig Programming Language
April 2025 (version 1.100)
LLM Powered Autonomous Agents
0.10.0 Release Notes ⚡ The Zig Programming Language
Andrej Karpathy — AGI is still a decade away
Software Engineering - The Soft Parts
January 2023 (version 1.75)
Let's Write a Tree-Sitter Major Mode
Designing AI resistant technical evaluations
Supercharge SQLite with Ruby functions
How Python Asyncio Works: Recreating it from Scratch
Six Programming Languages I'd Like to See
If Not React, Then What? - Infrequently Noted