Contents Command Line Interface Guidelines An open-source guide to help you write better command-line programs, taking traditional UNIX principles and updating them for the modern day. Authors Aanand Prasad Engineer at Squarespace, co-creator of Docker Compose. @aanandprasad Ben Firshman Co-creator Replicate, co-creator of Docker Compose. @bfirsh Carl Tashian Offroad Engineer at Smallstep, first e
日本株3700社以上を分析。yfinance x「わが投資術」株式スクリーニングアプリを作った話（バイブコーディング）
いきなりですが。 海外旅行したり働き始めたりすると、日本の良さが身に染みたと感じた人は多いんじゃないでしょうか？ なんかとりあえず外で働いてみたいと思っていましたが、今はいつ戻るかと考える日々です。（とにかく温泉に入りたい） また色々と各国を回る中で、日本企業ってアジア圏や他の国にもかなり進出してるんだなぁと実感しました。（そりゃそう） そんなこんなで日本株に興味を持ち 昨年にわが投資術を購入して実践し始めました。（まだ初めて一年目なので成績はわかりません。。。が、マイナスは無し） 自分でバフェットコードや Claude mcp-yfinance などを利用しながらスクリーニングしてみましたが、毎回決算が出るたびに手動とチャット相手にあるのも何かなぁ。と思いまして。 じゃあ自動収集とスクリーニング用のアプリ作ってみよう(vibe coding) そんなノリから、日本株全銘柄を自動収集・簡易
MCPでLLMに行動させる - Terraformを例とした tfmcp の紹介 - じゃあ、おうちで学べる
はじめに こんにちは！今回は、私が最近開発した tfmcp というツールを紹介します。これは Terraform を LLM（大規模言語モデル）から操作できるようにするツールで、Model Context Protocol (MCP) を活用しています。 github.com このブログが良ければ読者になったり、GitHub リポジトリにStarをいただけると開発の励みになります。nwiizoをフォロワーしてくれるのもありがたいです。より良いツール開発のためのフィードバックもお待ちしています！ MCP とは何か？ 記事を始める前に、まず MCP (Model Context Protocol) について簡単に説明しましょう。MCP についてより詳しい情報は、公式ドキュメント modelcontextprotocol.io や Anthropic の Model Context Protoc
防衛省サイバーコンテスト 2025 writeup - st98 の日記帳 - コピー
2/2に12時間というちょうどよい競技時間で開催された。21時終了だったけれども、11時45分ぐらいに最速で全完して1位🎉 第1回以来4年ぶりの優勝だ。昨年大会の第4回ではヒントの閲覧数で優勝を逃してしまって悔しい思いをしたので、雪辱を果たすことができ嬉しい。開始直後からずっと1位を独走できており、450名以上のプレイヤーがいる中で圧勝だったのも嬉しい。 昨年度や一昨年度はバルクが作問を担当していたが、今回はAGESTが担当していた。これまでの問題と比較すると全体的に易化したように思うが、解くにあたって発想の大きな飛躍を必要とするいわゆる「エスパー要素」のある問題はごく一部を除いて存在しておらず*1、よかったと思う。また、昨年度・一昨年度に引き続きwriteupは公開可能というのもよかった。 戦略というほどの戦略は立てていなかったけれども、とりあえずWebを見た後は全カテゴリを上から見て
REST API Design Best Practices Handbook – How to Build a REST API with JavaScript, Node.js, and Express.js
By Jean-Marc Möckel I've created and consumed many API's over the past few years. During that time, I've come across good and bad practices and have experienced nasty situations when consuming and building API's. But there also have been great moments. There are helpful articles online which present many best practices, but many of them lack some practicality in my opinion. Knowing the theory with
Developers are increasingly relying on AI coding assistants to accelerate our daily workflows. These tools can autocomplete functions, suggest bug fixes, and even generate entire modules or MVPs. Yet, as many of us have learned, the quality of the AI’s output depends largely on the quality of the prompt you provide. In other words, prompt engineering has become an essential skill. A poorly phrased
NETGEAR社製ルーターにおける認証不要の任意コード実行の技術的解説(PSV-2022-0044) - GMO Flatt Security Blog
※本記事は先立って公開された英語版記事を翻訳し、日本語圏の読者向けに一部改変したものです。 画像出典: https://www.netgear.com/business/wifi/access-points/wac124/ はじめに こんにちは、株式会社Flatt Securityのstypr(@stereotype32)です。 一昨年、日本のOSS製品で発見された0day脆弱性に関する技術解説をブログに書きました。 それ以来、私は様々な製品に多くの脆弱性を発見してきました。残念ながら私が見つけたバグのほとんどはすぐに修正されなかったので、今日まで私が見つけた、技術的に興味深い脆弱性の情報を共有する機会がありませんでした。 本記事では、NETGEAR社のWAC124(AC2000)ルーターにおいて、様々な脆弱性を発見し、いくつかの脆弱性を連鎖させて、前提条件なしに未認証ユーザーの立場からコ
抜粋 : Release cadence - Amazon Linux 2023 メジャーリリースとマイナーリリースの内容は以下AWS公式ドキュメントに記載されています。メジャーリリース時には互換性があるか十分に検証した上でアップデートしましょう。 Major version release— Includes new features and improvements in security and performance across the stack. The improvements might include major changes to the kernel, toolchain, Glib C, OpenSSL, and any other system libraries and utilities. Major releases of Amazon Linux ar
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
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
缶つぶし機とソフトウェア移行技術 - Refactoring to Rust の読書感想文 - じゃあ、おうちで学べる
はじめに ——あるいは、「知っている」と「理解している」の間 Rustのことは、知っていた。学習もしていた。実務でも使っていた。 でも、それは知っているつもりだった。 知ってるつもり 無知の科学 (ハヤカワ文庫NF) 作者:スティーブン スローマン,フィリップ ファーンバック早川書房Amazon 日々Rustで開発し、BoxとRcとArcを使い分け、tokio::spawnでタスクを生成し、?演算子を当たり前のように書いている。FFI？PyO3使えばいいでしょ。WebAssembly？wasm-bindgenがあるじゃない。技術的には、確かに「使える」レベルにはあった。 でも、心のどこかで感じていた違和感があった。 オートバイのエンジンを分解できる人と、エンジンが動く原理を理解している人は違う。コードが動くことと、なぜそう書くべきかを理解することも違う。私は前者だった。メカニックではあった
Today we’re excited to announce the release of TypeScript 4.8! If you’re not yet familiar with TypeScript, it’s a language that builds on JavaScript and adds syntax for types. These types let you put your expectations and assumptions into your code, and those assumptions can then be checked by the TypeScript type-checker. This checking can help avoid typos, calling uninitialized values, mixing up
written by Ruud van Asseldonk published 11 January 2023 For a data format, yaml is extremely complicated. It aims to be a human-friendly format, but in striving for that it introduces so much complexity, that I would argue it achieves the opposite result. Yaml is full of footguns and its friendliness is deceptive. In this post I want to demonstrate this through an example. This post is a rant, and
Gamedev in Lisp. Part 1: ECS and Metalinguistic Abstraction - cl-fast-ecs by Andrew
Gamedev in Lisp. Part 1: ECS and Metalinguistic Abstraction In this series of tutorials, we will delve into creating simple 2D games in Common Lisp. The result of the first part will be a development environment setup and a basic simulation displaying a 2D scene with a large number of physical objects. It is assumed that the reader is familiar with some high-level programming language, has a gener
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,
When people say “debuggers are useless and using logging and unit-tests is much better,” I suspect many of them think that debuggers can only put breakpoints on certain lines, step-step-step through the code, and check variable values. While any reasonable debugger can indeed do all of that, it’s only the tip of the iceberg. Think about it; we could already step through the code 40 years ago, sure
About Virus WarningThe Bitdefender Enterprise Support Team has verified that it is a false positive, here is the reply: Hello, Thank you for contacting the Bitdefender Enterprise Support Team. We have received an update from our laboratories. The files are clean and detection should be removed in the next couple of updates. Please let us know if there is anything else we can assist you with or if
Update 1.80.1: The update addresses these issues. Update 1.80.2: The update addresses this security issue. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the June 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: Accessibility improvements - Accessible V
Vacuous truth - Wikipedia
In mathematics and logic, a vacuous truth is a conditional or universal statement (a universal statement that can be converted to a conditional statement) that is true because the antecedent cannot be satisfied.[1] It is sometimes said that a statement is vacuously true because it does not really say anything.[2] For example, the statement "all cell phones in the room are turned off" will be true
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
Today we’re announcing our beta release of TypeScript 4.8! To get started using the beta, you can get it through NuGet, or- use npm with the following command: npm install -D typescript@beta You can also get editor support by Downloading for Visual Studio 2022/2019 Following directions for Visual Studio Code. Here’s a quick list of what’s new in TypeScript 4.8! Improved Intersection Reduction, Uni
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
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
Today we’re excited to announce our Release Candidate (RC) of TypeScript 4.8. Between now and the stable release of TypeScript 4.8, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or use npm with the following command: npm install -D typescript@rc You can also get editor support by Downloading for Visual Studio 2022/2019 Follow
PowerShell: the object-oriented shell you didn’t know you needed
PowerShell is an interactive shell and scripting language from Microsoft. It’s object-oriented — and that’s not just a buzzword, that’s a big difference to how the standard Unix shells work. And it is actually usable as an interactive shell. Getting Started PowerShell is so nice, Microsoft made it twice. Specifically, there concurrently exist two products named PowerShell: Windows PowerShell (5.1)
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
Node.js
const watcher = fs.watch(testDirectory, { recursive: true }); watcher.on('change', function (event, filename) {}); Contributed by Yagiz Nizipli in #45098 Other notable changes deps update ICU to 72.1 (Michaël Zasso) #45068 doc add lukekarrys to collaborators (Luke Karrys) #45180 add anonrig to collaborators (Yagiz Nizipli) #45002 lib drop fetch experimental warning (Matteo Collina) #45287 util (SE
Explicit Resource Management: Exploring JavaScript's and TypeScript's new feature | iliazeus
One of my favorite new features of JavaScript and TypeScript is explicit resource management. It brings new syntax, using foobar = ..., that enables RAII, reducing boilerplate when managing the lifecycle of various resources. In this article, I will explore this feature as implemented in TypeScript 5.2.0 with the disposablestack polyfill. I will mention both sync and async resources, DisposableSta
prompts.chat
Welcome to the “Awesome ChatGPT Prompts” repository! While this collection was originally created for ChatGPT, these prompts work great with other AI models like Claude, Gemini, Hugging Face Chat, Llama, Mistral, and more. ChatGPT is a web interface created by OpenAI that provides access to their GPT (Generative Pre-trained Transformer) language models. The underlying models, like GPT-4o and GPT-o
Proto Best Practices
Clients and servers are never updated at exactly the same time - even when you try to update them at the same time. One or the other may get rolled back. Don’t assume that you can make a breaking change and it’ll be okay because the client and server are in sync. Don’t Re-use a Tag NumberNever re-use a tag number. It messes up deserialization. Even if you think no one is using the field, don’t re-
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
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���
Node.js
Notable changes Add support for externally shared js builtins By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code
Follow @popovicu94 In this guide, we’ll build a very tiny Linux kernel, weighing in at 789 K, and requiring no MMU support. We’ll write some userspace code and this will be deployed on a virtual RISC-V 64-bit machine, without MMU, and we’ll run some tiny programs of our own. As a reminder, please go through the guide for a micro Linux distro to understand the concepts behind what we’re doing today
Renato Athaydes
Revenge of Lisp (Part 1⁄2) Background vector created by upklyak - www.freepik.com This may surprise you if you know me, but I’ve been learning Common Lisp for a few weeks now. It all started when I was reading, funnily enough, a blog post about another, much more hyped, language called Julia. The post was titled Julia and the reincarnation of Lisp, and in it the author lamented that despite his lo
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
Plan 9 Desktop Guide
PLAN 9 DESKTOP GUIDE INDEX What is Plan 9? Limitations and Workarounds Connecting to Other Systems VNC RDP SSH 9P Other methods Porting Applications Emulating other Operating Systems Virtualizing other Operating Systems Basics Window Management Copy Pasting Essential Programs Manipulating Text in the Terminal Acme - The Do It All Application Multiple Workspaces Tiling Windows Plumbing System Admin
The Alkyne GC · mcyoung
Alkyne is a scripting language I built a couple of years ago for generating configuration blobs. Its interpreter is a naive AST walker1 that uses ARC2 for memory management, so it’s pretty slow, and I’ve been gradually writing a new evaluation engine for it. This post isn’t about Alkyne itself, that’s for another day. For now, I’d like to write down some notes for the GC I wrote3 for it, and more
2024-10-16, Version 23.0.0 (Current), @RafaelGSS We’re excited to announce the release of Node.js 23! Key highlights include: Enabling require(esm) by default for Node.js applications Removing support for Windows 32-bit systems Stabilizing the node --run command Enhancements to the test runner, including glob pattern support for coverage files Node.js 23 will replace Node.js 22 as the ‘Current’ re
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Command Line Interface Guidelines
The Prompt Engineering Playbook for Programmers
Amazon Linux 2023がGAされました | DevelopersIO
Writing a C compiler in 500 lines of Python
Announcing .NET 10 - .NET Blog
Announcing TypeScript 4.8 - TypeScript
The yaml document from hell
What a good debugger can do 🔮
Better Fbx Importer & Exporter
June 2023 (version 1.80)
Kalyn: a self-hosting compiler for x86-64
Announcing TypeScript 4.8 Beta - TypeScript
0.8.0 Release Notes ⚡ The Zig Programming Language
My thoughts on writing a Minecraft server from scratch (in Bash)
Announcing TypeScript 4.8 RC - TypeScript
0.10.0 Release Notes ⚡ The Zig Programming Language
What's New in Emacs 28.1?
Vim9 script for Python Developers · GitHub
789 KB Linux Without MMU on RISC-V
Node.js — Node.js v23.0.0 (Current)