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
はじめに 対象イベント 読み方、使い方 Remote Code Execution(RCE) 親ディレクトリ指定によるopen_basedirのバイパス PHP-FPMのTCPソケット接続によるopen_basedirとdisable_functionsのバイパス JavaのRuntime.execでシェルを実行 Cross-Site Scripting(XSS) nginx環境でHTTPステータスコードが操作できる場合にCSPヘッダーを無効化 GoogleのClosureLibraryサニタイザーのXSS脆弱性 WebのProxy機能を介したService Workerの登録 括弧を使わないXSS /記号を使用せずに遷移先URLを指定 SOME(Same Origin Method Execution)を利用してdocument.writeを順次実行 SQL Injection MySQ
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
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
Photo by Claudio Schwarz on Unsplash. How to create a Python package? In order to create a Python package, you need to write the code that implements the functionality you want to put in your package, and then you need to publish it to PyPI. That is the bare minimum. Nowadays, you can also set up a variety of other things to make your life easier down the road: continuous testing of your package;
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
Gamedev in Lisp. Part 1: ECS and Metalinguistic Abstraction - cl-fast-ecs by Andrew
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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
Golang Mini Reference 2022: A Quick Guide to the Modern Go Programming Language (REVIEW COPY)
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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
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
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
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: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the April 2025 release
This paper reflects work done in late 2022 and 2023 to audit for vulnerabilities in terminal emulators, with a focus on open source software. The results of this work were 10 CVEs against terminal emulators that could result in Remote Code Execution (RCE), in addition various other bugs and hardening opportunities were found. The exact context and severity of these vulnerabilities varied, but some
The Architecture of a Modern Startup | by Dmitry Kruglov | Nov, 2022 | Better Programming
workflow — all images by authorThe Tech side of startups can sometimes be very fluid and contain a lot of unknowns. What tech stack to use? Which components might be overkill for now but worth keeping an eye on in the future? How to balance the pace of business features development while keeping the quality bar high enough to have a maintainable codebase? Here I want to share our experience buildi
Solving Quantitative Reasoning Problems With Language Models
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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
Update 1.85.1: The update addresses these issues. Update 1.85.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the November 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: Floating editor windows - Drag and drop edit
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業務自動化これ一本!? KNIME 初心者への完全ガイド！ KNIMEの使い方 入門から応用まで - デジタル推進課
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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
This past May, I started a new job working in Rust. I was somewhat skeptical of Rust for a while, but it turns out, it really is all it’s cracked up to be. As a long-time C++ programmer, and C++ instructor, I am convinced that Rust is better than C++ in all of C++’s application space, that for any new programming project where C++ would make sense as the programming language, Rust would make more
EC2インスタンスのユーザーデータ内のdnfコマンドやyumコマンドが失敗する場合の緩和策を考えてみた | DevelopersIO
ユーザーデータでパッケージのインストールをしようとすると失敗するんだが こんにちは、のんピ(@non____97)です。 皆さんはEC2インスタンスのユーザーデータでdnfコマンドやyumコマンドが失敗したことはありますか? 私はあります。 具体的にはユーザーデータでdnf upgradeやdnf install パッケージ名を実行すると、以下のようにRPM: error: can't create transaction lock on /var/lib/rpm/.rpm.lock (Resource temporarily unavailable)とログが出力されます。 $ dnf upgrade -y --releasever=latest Amazon Linux 2023 repository 30 MB/s | 23 MB 00:00 Amazon Linux 2023 Ker
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
For almost a complete decade—starting with discovering Haskell in about 2009 and right up until switching to a job where I used primarily Ruby and C++ in about 2019—I would have called myself first and foremost a Haskell programmer. Not necessarily a dogmatic Haskeller! I was—and still am—proudly a polyglot who bounces between languages depending on the needs of the project. However, Haskell was m
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
AWS Configのカスタムルールと自動修復でMFAを全IAMユーザーに強制する - 365歩のテック
AWS Configのカスタムルールによる自動検出と自動修復の仕組みを使って、「全IAMユーザーに自動でMFAを強制する」仕組みを試してみました。 目次 目次 目次 やりたいこと AWS Configとは AWS Config カスタムルールとは 自動修復とは 前提 使用技術 方法 やりたいこと（再掲） 作るもの ディレクトリ構成 実装 SAM(CloudFormation)用template.yml ソースコード(Python) ホワイトリストユーザ用テキストファイル デプロイシェル 解説 SAM(CloudFormation)用template.yml 上記MFA強制ポリシーの補足 ①「デタッチ」か「ポリシー編集・削除」を許可しないと、いざというときのデタッチ方法がなくなる ②間違えてこのポリシーの削除をしようとしてしまったとき、削除自体は禁止されるが、その際にこのポリシーが付いている
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
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
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.56.1: The update addresses these security issues. Update 1.56.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the April 2021 release of Visual Studio Code. The VS Code team has been busy this month working
Following up from the last post, there is a lot more we need to cover. This was intended to be the post where we talk exclusively about benchmarks and numbers. But, I have unfortunately been perfectly taunted and status-locked, like a monster whose “aggro” was pulled by a tank. The reason, of course, is due to a few folks taking issue with my outright dismissal of the C and C++ APIs (and not showi
Pandas is a very popular tool for data analysis. It comes built-in with many useful features, it's battle tested and widely accepted. However, pandas is not always the best tool for the job. SQL databases have been around since the 1970s. Some of the smartest people in the world worked on making it easy to slice, dice, fetch and manipulate data quickly and efficiently. SQL databases have come such
I find blockchain fascinating because it extends open source software development to open source + state. This seems to be a genuine/exciting innovation in computing paradigms; We don’t just get to share code, we get to share a running computer, and anyone anywhere can use it in an open and permissionless manner. The seeds of this revolution arguably began with Bitcoin, so I became curious to dril
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
The sad state of property-based testing libraries Posted on Jul 2, 2024 Property-based testing is a rare example of academic research that has made it to the mainstream in less than 30 years. Under the slogan “don’t write tests, generate them” property-based testing has gained support from a diverse group of programming language communities. In fact, the Wikipedia page of the original property-bas
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【2020年】CTF Web問題の攻撃手法まとめ - こんとろーるしーこんとろーるぶい
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