技術部の笹田（ko1）と遠藤（mame）です。クックパッドで Ruby (MRI: Matz Ruby Implementation、いわゆる ruby コマンド) の開発をしています。お金をもらって Ruby を開発しているのでプロの Ruby コミッタです。 本日 12/25 に、ついに Ruby 3.0.0 がリリースされました。一昨年、昨年に続き、今年も Ruby 3.0 の NEWS.md ファイルの解説をします。NEWS ファイルとは何か、は一昨年の記事を見てください（なお Ruby 3.0.0 から、NEWS.md にファイル名を変えました）。 プロと読み解く Ruby 2.6 NEWS ファイル - クックパッド開発者ブログ プロと読み解くRuby 2.7 NEWS - クックパッド開発者ブログ Ruby 3.0 は、Ruby にとってほぼ 8 年ぶりのメジャーバージョンア
はじめに大規模言語モデルであるChatGPTに文章を渡す際、適切な区切り線の使用は、情報の正確な伝達や解釈に大いに役立ちます。 この記事では、区切り線に適切なものを検証します。 区切り線とは？使い方区切り線は文章を区切る時に使用する文字列のことです。 例えば下記のようなものです。 また、使い方をまとめた記事もあるので参考にしてください。 def test() a = "a" b = "b" c = a + b print(c) ================================ ←これが区切り線 上記のコードについて教えてください 結論先に結論を言うと、4個～16個連続した「-」か「=」 もしくは8の倍数の「-」か「=」が区切り線としてはベストでした。 ---- ---------------- -------------------------------- ==== ==
Microsoft Power Automate DesktopでRPAを実現してみる | 🌴 officeの杜 🥥
自分自身の個人的意見としては、エンドユーザコンピューティングは大いに結構だと思ってるけれど、一方で日本でジリジリと熱さが消えつつある国内の有象無象のRPAについては滅んだほうが良いとも思ってる。理由は後述するとして、本日良いニュースが発表されました。Power Automate Desktopについて追加費用無し無償で利用可能になるとのこと。これは既にあるMicrosoft365のEnterpriseプランなどに標準で利用できてるPower Automateのデスクトップ版のようで、Windows10に標準でついてくるようになるとのこと。 ということで、現時点のMicrosoft365で使えてるPower Automate Desktopを使ってみて、どんな感じなのか？またリリース後にその違いなどをここに記述していこうかなと思っています。また、Seleniumベースのウェブ自動化についても
January 30, 2023 In this post, we'll implement a GPT from scratch in just 60 lines of numpy. We'll then load the trained GPT-2 model weights released by OpenAI into our implementation and generate some text. Note: This post assumes familiarity with Python, NumPy, and some basic experience with neural networks. This implementation is for educational purposes, so it's missing lots of features/improv
PacketProxyで探るGemini CLIのコンテキストエンジニアリング 〜AIエージェントを信頼できる相棒に〜 | BLOG - DeNA Engineering
2025.07.18 技術記事 PacketProxyで探るGemini CLIのコンテキストエンジニアリング 〜AIエージェントを信頼できる相棒に〜 by akira.kuroiwa #gemini-cli #ai #security #aiエージェント #コンテキストエンジニアリング #packetproxy 「なんかよく分からないけど、すごい」で終わらせないために こんにちは、DeNA セキュリティ技術グループの 黒岩 亮 ( @kakira9618 ) です。 AIエージェント、とくに Gemini CLI のようなコーディングを支援してくれるツールは非常に強力で、私たちの開発体験を大きく変えようとしています。しかし、その一方で、こんな風に感じたことはありませんか？ 「このファイルの情報、勝手にAIに送られたりしない？ 大丈夫かな？」 と、情報管理・セキュリティ面で漠然とした不安を
Today, we are excited to announce the launch of .NET 10, the most productive, modern, secure, intelligent, and performant release of .NET yet. It’s the result of another year of effort from thousands of developers around the world. This release includes thousands of performance, security, and functional improvements across the entire .NET stack-from languages and developer tools to workloads-enabl
I am a huge fan of Richard Feyman’s famous quote: “What I cannot create, I do not understand” I think it’s brilliant, and it remains true across many fields (if you’re willing to be a little creative with the definition of ‘create’). It is to this principle that I believe I owe everything I’m truly good at. Some will tell you to avoid reinventing the wheel, but they’re wrong: you should build your
4 Pandas Anti-Patterns to Avoid and How to Fix Them
pandas is a powerful data analysis library with a rich API that offers multiple ways to perform any given data manipulation task. Some of these approaches are better than others, and pandas users often learn suboptimal coding practices that become their default workflows. This post highlights four common pandas anti-patterns and outlines a complementary set of techniques that you should use instea
Update 1.69.1: The update addresses these issues. Update 1.69.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the June 2022 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: 3-way merge editor - Resolve merge conflicts wit
Weird Lexical Syntax
I just learned 42 programming languages this month to build a new syntax highlighter for llamafile. I feel like I'm up to my eyeballs in programming languages right now. Now that it's halloween, I thought I'd share some of the spookiest most surprising syntax I've seen. The languages I decided to support are Ada, Assembly, BASIC, C, C#, C++, COBOL, CSS, D, FORTH, FORTRAN, Go, Haskell, HTML, Java,
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
AST vs. Bytecode: Interpreters in the Age of Meta-Compilation
233 AST vs. Bytecode: Interpreters in the Age of Meta-Compilation OCTAVE LAROSE, University of Kent, UK SOPHIE KALEBA, University of Kent, UK HUMPHREY BURCHELL, University of Kent, UK STEFAN MARR, University of Kent, UK Thanks to partial evaluation and meta-tracing, it became practical to build language implementations that reach state-of-the-art peak performance by implementing only an interprete
Most of my readers are probably familiar with procedural programming, object-oriented programming (OOP), and functional programming (FP). The majority of top programming languages on all of the language popularity charts (like TIOBE) support all three to some extent. Even if a programmer avoided one or more of those three paradigms like the plague, they’re likely at least aware of them and what th
Show navigation A recent article on WebAssembly Garbage Collection (WasmGC) explains at a high level how the Garbage Collection (GC) proposal aims to better support GC languages in Wasm, which is very important given their popularity. In this article, we will get into the technical details of how GC languages such as Java, Kotlin, Dart, Python, and C# can be ported to Wasm. There are in fact two m
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
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.54.1: The update addresses an issue with an extension dependency. Update 1.54.2: The update addresses these issues. Update 1.54.3: The update addresses this issue. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the February 2021 release of Vi
Patterns for Building LLM-based Systems & Products [ llm engineering production 🔥 ] · 66 min read Discussions on HackerNews, Twitter, and LinkedIn “There is a large class of problems that are easy to imagine and build demos for, but extremely hard to make products out of. For example, self-driving: It’s easy to demo a car self-driving around a block, but making it into a product takes a decade.”
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
This post is an account of why I prefer using the attrs library over Pydantic. I'm writing it since I am often asked this question and I want to have something concrete to link to. This is not meant to be an objective comparison of attrs and Pydantic; I'm not interested in comparing bullet points of features, nor can I be unbiased since I'm a major contributor to attrs (at time of writing, second
htmy
Source code: https://github.com/volfpeter/htmy Documentation and examples: https://volfpeter.github.io/htmy htmy Async, pure-Python server-side rendering engine. Unleash your creativity with the full power and Python, without the hassle of learning a new templating language or dealing with its limitations! Key features Async-first, to let you make the best use of modern async tools. Powerful, Reac
World’s First MIDI Shellcode Jan 2025 · 45 min read I gained remote code execution via MIDI messages to trick my synth into playing Bad Apple on its LCD. This blog post is about my journey with this reverse engineering project. Final iteration of Bad Apple The beginning I’ve had this Yamaha PSR-E433 synth for a very long time, and a couple of years ago I decided to open it up — partly because it w
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
I want to write a post about Pitchfork, explaining where it comes from, why it is like it is, and how I see its future. But before I can get to that, I think I need to share my mental model on a few things, in this case, Ruby’s GVL. For quite a long time, it has been said that Rails applications are mostly IO-bound, hence Ruby’s GVL isn’t that big of a deal and that has influenced the design of so
The Go Programming Language and Environment – Communications of the ACM
Go is a programming language created at Google in late 2007 and released as open source in November 2009. Since then, it has operated as a public project, with contributions from thousands of individuals and dozens of companies. Go has become a popular language for building cloud infrastructure: Docker, a Linux container manager, and Kubernetes, a container deployment system, are core cloud techno
My thoughts on writing a Minecraft server from scratch (in Bash) For the past year or so, I've been thinking about writing a Minecraft server in Bash as a thought excercise. I once tried that before with the Classic protocol (the one from 2009), but I quickly realized there wasn't really a way to properly parse binary data in bash. Take the following code sample: function a() { read -n 2 uwu echo
Version 1.106 is now available! Read about the new features and fixes from October. Update 1.86.2: The update addresses these issues. Update 1.86.1: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the January 2024 release of Visual Studio Code. There are many updates in this version that we hope you'll lik
PEP 636 – Structural Pattern Matching: Tutorial | peps.python.org
PEP 636 – Structural Pattern Matching: Tutorial Author: Daniel F Moisset <dfmoisset at gmail.com> Sponsor: Guido van Rossum <guido at python.org> BDFL-Delegate: Discussions-To: Python-Dev list Status: Final Type: Informational Created: 12-Sep-2020 Python-Version: 3.10 Post-History: 22-Oct-2020, 08-Feb-2021 Resolution: Python-Committers message Table of Contents Abstract Tutorial Matching sequences
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
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Hachi: An (Image) Search engine Only the dead have seen the end of war .. George Santayana For quite some time now, i have been working on and off on a fully self-hosted search engine, in hope to make it easier to search across Personal data in an end to end manner. Even as individuals, we are hoarding and generating more and more data with no end in sight. Such "personal" data is being stored fro
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
Manuel Cerón
Last year I finally decided to learn some Rust. The official book by Steve Klabnik and Carol Nichols is excellent, but even after reading it and working on some small code exercises, I felt that I needed more to really understand the language. I wanted to work on a small project to get some hands-on experience, but most of my ideas didn’t feel very well suited for Rust. Then I started reading the
If you are a Rubyist, you’ve likely been writing # frozen_string_literal: true at the top of most of your Ruby source code files, or at the very least, that you’ve seen it in some other projects. Based on informal discussions at conferences and online, it seems that what this magic comment really is about is not always well understood, so I figured it would be worth talking about why it’s there, w
GIMP 2.99.12 is a huge milestone towards GIMP 3.0. Many of the missing pieces are getting together, even though it is still a work in progress. As usual, issues are expected and in particular in this release which got important updates in major areas, such as canvas interaction code, scripts, but also theming… “CMYK space invasion”, by Jehan (based on GPLv3 code screencast), Creative Commons by-sa
Introduction Some part of me has always been fascinated with coercing code to run in weird places. I scratch this itch a lot with my security research projects. These often lead me to writing shellcode to run in kernels or embedded hardware, sometimes with the only way being through an existing bug. For those not familiar, shellcode is honestly hard to describe. I don’t know if there’s a very form
2024-08-22, Version 22.7.0 (Current), @RafaelGSS Experimental transform types support With the new flag --experimental-transform-types it is possible to enable the transformation of TypeScript-only syntax into JavaScript code. This feature allows Node.js to support TypeScript syntax such as Enum and namespace. Thanks to Marco Ippolito for making this work on #54283. Module syntax detection is now
Rust Programming Language Tutorial – How to Build a To-Do List App
By Claudio Restifo Since its first open-source release in 2015, the Rust programming language has gained a lot of attention from the community. It's also been voted the most loved programming language on StackOverflow's developer survey each year since 2016. Rust was designed by Mozilla and is considered a system programming language (like C or C++). It has no garbage collector, which makes its pe
I did this in 2020 and then again in 2021, but I’m in the mood to look around again. Let’s look through Are We GUI Yet? and see what’s up these days. The task today is to have a text label and an input field that can change the text in the label. In React, for example, this is basically free: const Demo = () => { let [state, setState] = useState("Hello, world!"); return ( <div> <p>{state}</p> <inp
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
vim9script4pythondevelopers.md Vim9 script for Python Developers Vim9 script�Vim script��������������������������������������������������系��� def������義����������Vim script��vim9script�����使����������(vim9script���
Austin Z. Henley Associate Teaching Professor Carnegie Mellon University Python strings are immutable, but only sometimes 2/15/2021 Update 2/16/2021: See the discussion of this post on Hacker News. The standard wisdom is that Python strings are immutable. You can't change a string's value, only the reference to the string. Like so: x = "hello" x = "goodbye" # New string! Which implies that each ti
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プロと読み解く Ruby 3.0 NEWS - クックパッド開発者ブログ
ChatGPTに渡す文章の適切な区切り線について検証した記事｜Clirea
GPT in 60 Lines of NumPy | Jay Mody
Announcing .NET 10 - .NET Blog
Writing Toy Software Is A Joy
June 2022 (version 1.69)
Implementing Logic Programming
A new way to bring garbage collected programming languages efficiently to WebAssembly · V8
Kalyn: a self-hosting compiler for x86-64
February 2021 (version 1.54)
Patterns for Building LLM-based Systems & Products
Why I use attrs instead of pydantic
World's First MIDI Shellcode
0.8.0 Release Notes ⚡ The Zig Programming Language
So You Want To Remove The GVL?
My thoughts on writing a Minecraft server from scratch (in Bash)
January 2024 (version 1.86)
0.10.0 Release Notes ⚡ The Zig Programming Language
Frozen String Literals: Past, Present, Future?
GIMP - Development version: GIMP 2.99.12 Released
Rust on MIPS64 Windows NT 4.0
Node.js — Node.js v22.7.0 (Current)
A 2025 Survey of Rust GUI Libraries
What's New in Emacs 28.1?
Vim9 script for Python Developers · GitHub
Python strings are immutable, but only sometimes