「Postgres で試した？」と聞き返せるようになるまでもしくはなぜ私は雰囲気で技術を語るのか？ — Just use Postgres 読書感想文 - じゃあ、おうちで学べる
はじめに 「Just use Postgres」という言葉を初めて聞いたのは、いつだったか覚えていません。Twitter か Hacker News か、あるいは社内の Slack か。どこで聞いたにせよ、私の反応は決まっていました。「また極端なことを言う人がいる」と。 「それ、〇〇でもできますよ」——この手のフレーズはもう100回は聞いてきました。そして大抵の場合、その〇〇は専用ツールに置き換えられていきます。技術が専門分化していくのは自然な流れです。 全文検索なら Elasticsearch。時系列データなら InfluxDB。メッセージキューなら RabbitMQ。それぞれの分野に専門家がいて、専用のソリューションがあって、ベストプラクティスがあります。「とりあえず Postgres で」なんて、それは思考停止ではないか、と。でも、心のどこかで気になっていたんです。 www.mann
Another year passes. I was hoping to write more articles instead of just these end-of-the-year screeds, but I almost died in the spring semester, and it sucked up my time. Nevertheless, I will go through what I think are the major trends and happenings in databases over the last year. There were many exciting and unprecedented developments in the world of databases. Vibe coding entered the vernacu
MicrosoftのGraphRAG+Neo4jで簡単にKnowledge Graphを可視化する - Taste of Tech Topics
こんにちは。データサイエンティストチームYAMALEXのSsk1029Takashiです。 LLMが広く使用されるようになってから、RAGに関する研究も増加し、RAGを拡張する手法の研究も多く出ました。 その中でもテキストをグラフデータとして扱いRAGの元データとする手法をGraphRAGと言います。 今回はその中の一つであるMicrosoftが提唱しているGraphRAGの手法を使っていきます。 www.microsoft.com MicrosoftからはGraphRAGを使用できる実装もPythonライブラリとして発表されています。 ライブラリではグラフデータはあくまでRAGの元データとして使用していますが、せっかくテキストからグラフが生成できるのであれば、テキストマイニングしてみたくなるものです。 そこで、本記事ではこの手法で作成したグラフをグラフDBの一つであるNeo4jに投入して
プラットフォームチームの菅原です。 カンムのサービスで使われている各種アプリケーション（Goアプリ・管理アプリ・Redash等）では、データベースに接続する場合に一般的なパスワード認証を使っていることが多いです。 しかし、パスワード認証はパスワード漏洩のリスクやパスワード管理の手間があり、また要件によっては定期的なパスワードの変更も必要になってきます。 単純な方法で安全にパスワードをローテーションしようとすると、新しいDBユーザーを作成し、アプリケーションの接続ユーザーを変更し、さらに必要であれば元のDBユーザーのパスワードを変更して、接続ユーザーを元に戻す…などのオペレーションが必要になります。 そこで、AWS RDS（PostgreSQL）の「Secrets Managerによるマスターユーザーパスワードのパスワード管理」と「IAMデータベース認証」を利用してシステムから固定パスワード
Introducing Ezno
Ezno is an experimental compiler I have been working on and off for a while. In short, it is a JavaScript compiler featuring checking, correctness and performance for building full-stack (rendering on the client and server) websites. This post is just an overview of some of the features I have been working on which I think are quite cool as well an overview on the project philosophy ;) It is still
GitHub Copilot Labsとは？ VSCodeの拡張機能として、GitHub Copilot Labs をインストールすれば、コードの解説をしてくれたり、リファクタリングしてくれたり、バグを修正してくれたりと便利な機能がたくさんあります。 以前に筆者が書いた以下のようなChatGTPの拡張機能のようなものです。 公式ページより抜粋 GitHub Copilotの実験的なアプリケーションのためのVS Code拡張機能。 GitHub Copilotは、開発者向けの画期的なAIペアプログラマですが、私たちはコーディングの未来を探求し始めたばかりです。テクニカルプレビューの期間中、Copilotチームは提案の質を向上させ、安全機能を追加しました。しかし、Copilotがコード提案以外にも提供できる潜在的な助けを見るのは難しいことではありません。 本日、GitHub Copilot L
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
CloudFormation 一撃で EC2 の Blue/Green Deployment の CodePipeline を構築する | DevelopersIO
準備 CodeCommitに以下をプッシュします。 なお、CodePipelineによる自動デプロイではファイル上書きデプロイを設定できないので、必要に応じて appspec.ymlで元のファイルを削除するように対応します。 ソースコード(index.html, hello.conf) appspec.yml (本稿では beforeInstall.sh を利用) ちなみに、index.html や hello.conf の素材は こちら を使っています。 参考 ## appspec.yml version: 0.0 os: linux files: - source: ./hello.conf destination: /etc/nginx/conf.d/ - source: ./index.html destination: /usr/share/nginx/html/ hooks:
ChatGPT (Advanced Data Analysis)でBNF式からパーサーを生成する - Taste of Tech Topics
こんにちは、最近ピアノを習い始めた安部です。 今回は、ChatGPTのAdvanced Data Analysis (旧Code Interpreter)にBNF式を与えてパーサーを作成してもらおうと思います。 BNF式のように機械的に解釈可能なものであれば、正確にコードを生成してくれるのではないでしょうか？ BNFでうまくいけば、その他の様々な形式のデータやフォーマットからパーサーを自動生成してくれることが期待できそうです。 1. BNFとは BNF（バッカス・ナウア記法）とは、プログラムの構文規則（文脈自由文法）を記述するための記法です。 正確な定義よりも具体例を見た方が早く理解できると思うので、例を示します。 『プログラム意味論』（横内寛文 著）の冒頭に登場する、非常に単純なプログラムを許容する言語の定義です。 <変数> ::= A | B | C | ... | Z <定数> ::
We Love You, TypeScriptFor nearly five years now, Motion has operated in a large TypeScript monorepo. At its peak, it was roughly ~2.5 million lines of code after excluding comments, node_modules, etc. To manage this, we used Vercel’s rather excellent Turborepo build system. This is not a blog post hating on TypeScript — quite the opposite! Motion would likely not even have survived until today wi
Assessing Claude Mythos Preview’s cybersecurity capabilities April 7, 2026 Nicholas Carlini, Newton Cheng, Keane Lucas, Michael Moore, Milad Nasr, Vinay Prabhushankar, Winnie Xiao Hakeem Angulu, Evyatar Ben Asher, Jackie Bow, Keir Bradwell, Ben Buchanan, David Forsythe, Daniel Freeman, Alex Gaynor, Xinyang Ge, Logan Graham, Kyla Guru, Hasnain Lakhani, Matt McNiece, Mojtaba Mehrara, Renee Nichol, A
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
Happy New Year everyone! In late December 2023 (Christmas Day to be precise), CPython core developer Brandt Bucher submitted a little pull-request to the Python 3.13 branch adding a JIT compiler. This change, once accepted would be one of the biggest changes to the CPython Interpreter since the Specializing Adaptive Interpreter added in Python 3.11 (which was also from Brandt along with Mark Shann
Internet Engineering Task Force (IETF) K. Davis Request for Comments: 9562 Cisco Systems Obsoletes: 4122 B. Peabody Category: Standards Track Uncloud ISSN: 2070-1721 P. Leach University of Washington May 2024 Universally Unique IDentifiers (UUIDs) Abstract This specification defines UUIDs (Universally Unique IDentifiers) -- also known as GUIDs (Globally Unique IDentifiers) -- and a Uniform Resou
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
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,
Syntax Highlighting in Hand-Coded Websites The problem I have been trying to identify practical reasons why hand-coding websites with HTML and CSS is so hard (by hand-coding, I mean not relying on frameworks, generators or 3rd party scripts that modify the DOM). Let's say, I want to make a blog. What are the actual things that prevent me from making—and maintaining—it by hand? What would it take t
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
syntaxdesign
One of the most recognizable features of a languages is its syntax. What are some of the things about syntax that matter? What questions might you ask if you were creating a syntax for your own language? Motivation A programming language gives us a way structure our thoughts. Each program, has a kind of internal structure, for example: How can we capture this structure? One way is directly, via pi
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
I thought it would be fun to go outside of my comfort zone of web development topics and write about something completely different and new, something I have never written about before. So today, I'm going to show you how to implement a programming language! The project will parse and execute programs written in a simple language I called my (I know it's a lame name, but hey, it is "my" language).
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
PyTorch discloses malicious dependency chain compromise over holidays
HomeNewsSecurityPyTorch discloses malicious dependency chain compromise over holidays PyTorch has identified a malicious dependency with the same name as the framework's 'torchtriton' library. This has led to a successful compromise via the dependency confusion attack vector. PyTorch admins are warning users who installed PyTorch-nightly over the holidays to uninstall the framework and the counter
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.”
The OpenSSL punycode vulnerability (CVE-2022-3602): Overview, detection, exploitation, and remediation | Datadog Security Labs
emerging threats and vulnerabilities The OpenSSL punycode vulnerability (CVE-2022-3602): Overview, detection, exploitation, and remediation November 1, 2022 emerging vulnerability On November 1, 2022, the OpenSSL Project released a security advisory detailing a high-severity vulnerability in the OpenSSL library. Deployments of OpenSSL from 3.0.0 to 3.0.6 (included) are vulnerable and are fixed in
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
Here’s a niche terminal problem that has bothered me for years but that I never really understood until a few weeks ago. Let’s say you’re running this command to watch for some specific output in a log file: tail -f /some/log/file | grep thing1 | grep thing2 If log lines are being added to the file relatively slowly, the result I’d see is… nothing! It doesn’t matter if there were matches in the lo
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
Arnd Bergmann started his Open Source Summit Europe 2025 talk with a clear statement of position: 32-bit systems are obsolete when it comes to use in any sort of new products. The only reason to work with them at this point is when there is existing hardware and software to support. Since Bergmann is the overall maintainer for architecture support in the kernel, he is frequently asked whether 32-b
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
日本語で記述できるプログラミング言語「お抹茶」を作りながら学ぶインタプリタの仕組み - カミナシ エンジニアブログ
アイキャッチ画像 「日本語で記述できるプログラミング言語「お抹茶」を作りながら学ぶインタプリタの仕組み」 はじめに プログラミング言語って自分で作れるの？と思っていた僕ですが、実はインタプリタ型の簡単な言語なら意外と作れることがわかりました。 今回は「お抹茶」という日本語で書けるプログラミング言語を作ってみたので、その実装方法を紹介します。 インタプリタ言語を作るのに必要な3つの要素 プログラミング言語を作るというと難しそうですが、実は基本的な仕組みは意外とシンプルです。インタプリタ型言語を作るには、以下の3つの要素が必要になります。 1. トークナイザー（字句解析器） ソースコードを「トークン」と呼ばれる最小単位に分解する部分です。例えば 定義 x = 10 というコードを ["定義", "x", "=", "10"] のような配列に変換します。人間が読む文章を単語単位に区切るようなイメ
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
This article was discussed on Hacker News. This is a continuation of my last post on how to write a tree-sitter grammar in an afternoon. Building on the grammar we wrote, now we’re going to write a linter for Imp, and it’s even easier! The final result clocks in less than 60 SLOC and can be found here. Recall that tree-sitter is an incremental parser generator. That is, you give it a description o
In Praise of dhh
In Praise of dhh November 8, 2025 | #tech #politics A reflection on Ruby’s past, present, and future. This is a long essay. I strongly recommend you read it from the beginning, but to help navigate it I have created this table of contents. Prologue The Past How I Learned To Love Ruby A Breath Of Fresh Air A Shared Worldview The Present Tragedy Strikes Recent Conflict In The Community Strength and
Eliciting Reasoning in Language Models with Cognitive Tools Brown Ebouky IBM Research - Zurich ETH Zurich Brown.Ebouky@ibm.com Andrea Bartezzaghi IBM Research - Zurich abt@zurich.ibm.com Mattia Rigotti IBM Research - Zurich mrg@zurich.ibm.com Abstract The recent advent of reasoning models like OpenAI’s o1 was met with excited spec- ulation by the AI community about the mechanisms underlying these
Editor’s note: This guide to React design patterns was last reviewed for accuracy by Isaac Okoro on 12 April 2024. The article was also updated to add four more design patterns, covering prop combination, controlled components, forwardRefs, and conditional rendering. It was previously updated to include information about the render props pattern and state reducer pattern. Check out this article fo
25th May 2025 Anthropic publish most of the system prompts for their chat models as part of their release notes. They recently shared the new prompts for both Claude Opus 4 and Claude Sonnet 4. I enjoyed digging through the prompts, since they act as a sort of unofficial manual for how best to use these tools. Here are my highlights, including a dive into the leaked tool prompts that Anthropic did
こんにちは、R&Dチームの齋藤（@aznhe21）です。 今日はオプティムの創立記念パーティーがオンラインで行われます。 オプティムは2000/6/8に設立され、去年は20周年の節目であったにも関わらず生憎の時制で大きく祝えませんでしたが、 今年は準備も万全、盛大にお祝いしたいと思います。 さて、本日、日本時間6/18(金)、Rust 1.53がリリースされました。 この記事ではRust 1.53での変更点を詳しく紹介します。 6/18は京大の前身・京都帝国大学創立の日 ピックアップ 識別子にASCII以外の文字も使えるようになった ORパターンが使えるようになった 配列にIntoIteratorが実装された 安定化されたAPIのドキュメント AtomicBool::fetch_update サンプル AtomicPtr::fetch_update サンプル BTreeMap::retai
Release date: November 12, 2025 Update 1.106.1: The update addresses these issues Update 1.106.2: The update addresses these issues Update 1.106.3: The update addresses these issues Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the October 2025 release of Visual Studio Code. This release brings significant updates across three key areas:
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Databases in 2025: A Year in Review
データベースの固定パスワードをなくす - カンム テックブログ
GitHub Copilot Labsを使ってみた - Qiita
Writing a C compiler in 500 lines of Python
Moving off of TypeScript
Claude Mythos Preview \ red.anthropic.com
Python 3.13 gets a JIT
RFC 9562: Universally Unique IDentifiers (UUIDs)
Font with Built-In Syntax Highlighting
Implementing Logic Programming
Building a Toy Programming Language in Python
Kalyn: a self-hosting compiler for x86-64
Patterns for Building LLM-based Systems & Products
0.8.0 Release Notes ⚡ The Zig Programming Language
Why pipes sometimes get "stuck": buffering
The future of 32-bit support in the kernel
Andrej Karpathy — AGI is still a decade away
How to write a linter using tree-sitter in an hour
Eliciting Reasoning in Language Models with Cognitive Tools
A guide to React design patterns - LogRocket Blog
Highlights from the Claude 4 system prompt
Rust 1.53を早めに深掘り - OPTiM TECH BLOG
October 2025 (version 1.106)