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
PDFファイルをマークダウンに変換する作業って、地味だけど本当に大切な作業ですよね。 「また手作業でコピペか...」 「レイアウトが崩れてる...」 「表がめちゃくちゃになってる...」 私もさまざまな文書管理の現場で同じような課題に直面してきました。特に、既存のPDF資料をObisidianやNotionなどのマークダウン形式で管理したい場面って、本当に多いですよね。 手作業でやると、一つの文書だけで数時間かかることもあります。表や画像の配置を調整して、リンクを張り直して、フォーマットを整えて...。骨が折れる作業です。 「もっと効率的な方法はないだろうか？」 そう思っていた矢先、いくつかの優秀な手法を発見しました。今回は、スキルレベル別に4つのアプローチをご紹介したいと思います。 【各レベルの概要】まず、それぞれのアプローチの特徴を簡単にご紹介しておきますね。 レベル1：GPT-5でシ
Last week, I built a tiny Linux system from scratch, and booted it on my laptop! Here’s what it looked like: Let me tell you how I got there. I wanted to learn more about how the Linux kernel works, and what’s involved in booting it. So I set myself the goal to cobble together the bare neccessities required to boot into a working shell. In the end, I had a tiny Linux system with a size of 2.5 MB,
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
GPT-5 の新パラメータとツール｜npaka
以下の記事が面白かったので、簡単にまとめました。 ・GPT-5 New Params and Tools - OpenAI Cookbook 1. verbosity1-1. 概要「verbosity」は、出力トークン数を調節できます。 ・low : 簡潔なUX、簡潔な文章 ・medium (デフォルト) : バランスの取れた詳細 ・high : 詳細な情報。監査、教育、引き継ぎに最適 1-2. verbosityの効果の確認プロンプトを一定に保ったまま、「verbosity」を変更することで、効果を確認できます。 response = client.responses.create( model="gpt-5", input="人生、宇宙、そして万物に関する究極の問いに対する答えは何でしょうか?", text={ "verbosity": "low" } ) print(response
プロと読み解くRuby 3.4 NEWS テクノロジー部門技術基盤グループの笹田（ko1）と遠藤（mame）です。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、恒例のクリスマスリリースとして、Ruby 3.4.0 がリリースされました（Ruby 3.4.0 リリース ）。今年も STORES Product Blog にて Ruby 3.4 の NEWS.md ファイルの解説をします（ちなみに、STORES Advent Calendar 2024 の記事になります。他も読んでね）。NEWS ファイルとは何か、は以前の記事を見てください。 プロと読み解く Ruby 2.6 NEWS ファイル - クックパッド開発者
GitHub - modelcontextprotocol/servers: Model Context Protocol Servers
Official integrations are maintained by companies building production ready MCP servers for their platforms. 21st.dev Magic - Create crafted UI components inspired by the best 21st.dev design engineers. ActionKit by Paragon - Connect to 130+ SaaS integrations (e.g. Slack, Salesforce, Gmail) with Paragon’s ActionKit API. Adfin - The only platform you need to get paid - all payments in one place, in
> 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
Fish 4.0: The Fish Of Theseus
About two years ago, our head maintainer @ridiculousfish opened what quickly became our most-read pull request: #9512 - Rewrite it in Rust Truth be told, we did not quite expect that to be as popular as it was. It was written as a bit of an in-joke for the fish developers first, and not really as a press release to be shared far and wide. We didn’t post it anywhere, but other people did, and we go
Neovimでのフロントエンド開発環境 2021
最近はフロントエンドエンジニア(主にReact)をしているYano (@yuki_ycino) といいます。 この記事では自分が開発に使っているNeovim周りの環境と、その大まかな構成について書いていきます。 追記 後日、自分がNeovimでフロントエンド開発を行っている理由とVSCode という記事を書きました。 合わせて読んでいただけると幸いです。 はじめに 自分は現在フロントエンド開発のほぼ全てをNeovimで行っています。 個人的にはVSCodeと遜色なく(むしろ効率よく)開発できていると思うのですが、VSCodeではシンプルな設定で開発を始められるのに対し、Vimはどうしても設定のハードルが高いです。 具体的には現在5000行弱のVimの設定ファイルと100個前後のプラグインを導入して開発しています。 ただ、それを他の方に勧めるのは無茶なので、この記事ではほぼ最小構成に近いTy
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
背景 & Disclaimer 自分自身はこれまでBigQuery Scriptingをほぼ使っていませんでした BigQuery自体は3年くらいの利用歴 SQL単発で済ませるのが苦しそうな場合は、Pythonなどのプログラミング言語 + ワークフローエンジンの組み合わせで戦っており、自分としては特に困っていなかった 社内で他の方が使うケースをぼちぼち見ることがある 自分は困っていなくても、社内のBigQueryユーザーでBigQuery Scriptingを使っていて困っている人がそれなりにいる 著者はそれなりのBigQueryユーザーがいる企業のデータ基盤の人間です さすがに「使ったことないので、分からないですねー」で済ませるわけにはいかなくなってきた そもそもどんなユースケースで便利なのかすらも分かっていない状態なので、便利そうに思える場合をまとめてみることにしました というわけで、
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
Preliminaries What Is xargs? It's an adapter between text streams and argv arrays, two essential concepts in shell. You pass it flags that specify how to split stdin. Then it generates arguments and invokes processes. Example: $ echo 'alice bob' | xargs -n 1 -- echo hi hi alice hi bob What's happening here? xargs splits the input stream on whitespace, producing 2 arguments, alice and bob. We passe
Modern Emacs Typescript Web (React) Config with lsp-mode, treesitter, tailwind, TSX & more - Ovi Stoica
Table of Contents Introduction Part 1: Treesitter for Typescript & TSX LSP Support Completion setup Linter setup LSP Setup Eslint (Optional) Tailwind LSP Server LSP Performance Emacs LSP Booster Structural editing Formatting buffers with Prettier Other resources Conclusion Introduction I've worked within the JS ecosystem for the past 8 years using editors like Webstorm and VSCode, I started using
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
あけおめ☆ 年末年始を長期休暇にしたせいで、起ち上がりが悪い。エンジニアたるもの、そんな時はコーディングだ。Pythonでモチベーションを取り戻すんだ！ その気持ちだけでクールなシステムを考案・構築してしまったので、書いていきたいんだけど、物事には順序がある。まずは HTTP API Gateway に認証をつけるとこから、ブログの暖機運転なのだ。 おさらいと公式 前に、API Gateway の基本的な部分は↓↓に書きました。 AWS API Gateway v2 の Terraform構成 | 外道父の匠 AWS API Gateway v2 HTTPの基礎練習 | 外道父の匠 認証の仕組みがなかったので、まぁこんなこともできるよねって意味で、オレオレ認証も書いたんだけど、その後すぐに公式で対応されたわけです。 API Gateway HTTP API が Lambda および IAM
Learn how Replit trains Large Language Models (LLMs) using Databricks, Hugging Face, and MosaicML IntroductionLarge Language Models, like OpenAI's GPT-4 or Google's PaLM, have taken the world of artificial intelligence by storm. Yet most companies don't currently have the ability to train these models, and are completely reliant on only a handful of large tech firms as providers of the technology.
What We Learned from a Year of Building with LLMs (Part I)
It’s an exciting time to build with large language models (LLMs). Over the past year, LLMs have become “good enough” for real-world applications. The pace of improvements in LLMs, coupled with a parade of demos on social media, will fuel an estimated $200B investment in AI by 2025. LLMs are also broadly accessible, allowing everyone, not just ML engineers and scientists, to build intelligence into
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
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
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
What’s in which Python
Created 17 May 2022, last updated 16 August 2025 This is a summary of what features appeared in which versions of Python. Items with a star were introduced with a __future__ import. The Python release cycle is explained in PEP 602. Each release has its own PEP with specific dates, listed here. The Python Developer’s Guide has a page summarizing the release cycles of Python versions. 3.14: expected
CUPID: for joyful coding
What started as lighthearted iconoclasm, poking at the bear of SOLID, has developed into something more concrete and tangible. If I do not think the SOLID principles are useful these days, then what would I replace them with? Can any set of principles hold for all software? What do we even mean by principles? I believe that there are properties or characteristics of software that make it a joy to
This blog post hopes to convince you that Python is a compiled language. And by “Python”, I don’t mean alternate versions of Python like PyPy, Mypyc, Numba, Cinder, or even Python-like programming languages like Cython, Codon, Mojo1—I mean the regular Python: CPython! The Python that is probably installed on your computer right now. The Python that you got when you searched “python” on Google and
I've used many content formats over the years, and while I love Markdown, I run into its limitations daily when I work on larger documentation projects. In this issue, you'll look at Markdown and explore why it might not be the best fit for technical content, and what else might work instead. Markdown Lacks the Structure You Need Markdown is everywhere. It's human-readable, approachable, and has j
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
Rust is an appealing language for building user interfaces for a variety of reasons, especially the promise of delivering both performance and safety. However, finding a good architecture is challenging. Architectures that work well in other languages generally don’t adapt well to Rust, mostly because they rely on shared mutable state and that is not idiomatic Rust, to put it mildly. It is sometim
Did Google Just Kill Streamlit?
Sitting on my couch, browsing through YouTube recommendations, I came across a video by Prompt Engineering on Google’s latest open-source Python framework named ‘Mesop,’ which is used by teams at Google for internal tooling and rapid prototyping. If you are wondering what ‘Mesop’ means, stop overthinking. Not everything in life makes sense. Will, if you are reading this, drop it in the comments be
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
The unreasonable effectiveness of f-strings and re.VERBOSE
... in which we look at one or two ways to make life easier when working with Python regular expressions. tl;dr: You can compose verbose regular expressions using f-strings. Here's a real-world example – instead of this: 1pattern = r"((?:\(\s*)?[A-Z]*H\d+[a-z]*(?:\s*\+\s*[A-Z]*H\d+[a-z]*)*(?:\s*[\):+])?)(.*?)(?=(?:\(\s*)?[A-Z]*H\d+[a-z]*(?:\s*\+\s*[A-Z]*H\d+[a-z]*)*(?:\s*[\):+])?(?![^\w\s])|$)"
Note: I received a lot of great feedback from the discussions at Mastodon and Hacker News, so I've updated the post with some improvements to the font! I've also added some further examples and acknowledgements at the end. 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
This blog tries to summarize all the choices and paths you could take to implement your next programming language, more specifically the frontend for your language. There are a lot of factors that will influence your choices. Maybe you have your favorite host language that you would like to use for implementing your language, whether your language is dynamically or statically typed, or you are des
AWS News Blog New for App Runner – VPC Support With AWS App Runner, you can quickly deploy web applications and APIs at any scale. You can start with your source code or a container image, and App Runner will fully manage all infrastructure including servers, networking, and load balancing for your application. If you want, App Runner can also configure a deployment pipeline for you. Starting toda
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
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.”
👋 This page was last updated ~3 years ago. Just so you know. In the two years since I’ve posted I want off Mr Golang’s Wild Ride, it’s made the rounds time and time again, on Reddit, on Lobste.rs, on HackerNews, and elsewhere. And every time, it elicits the same responses: You talk about Windows: that’s not what Go is good at! (Also, who cares?) This is very one-sided: you’re not talking about th
Join a VS Code Dev Days event near you to learn about AI-assisted development in VS Code. Update 1.70.1: The update addresses these issues. Update 1.70.2: The update addresses these issues. Update 1.70.3: This update is only available for Windows 7 users and is the last release supporting Windows 7. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welc
Detailed here are some of the tools and techniques we use to test the GNU coreutils project, which should present some useful ways to automate the use of tools like gdb, strace, valgrind, sed, grep, or the coreutils themselves etc., either for testing or for other applications. We also describe general techniques like using timeouts in a robust and performant way. Test framework automake's test fr
Wasm core dumps and debugging Rust in Cloudflare Workers
Wasm core dumps and debugging Rust in Cloudflare Workers2023-08-14 A clear sign of maturing for any new programming language or environment is how easy and efficient debugging them is. Programming, like any other complex task, involves various challenges and potential pitfalls. Logic errors, off-by-ones, null pointer dereferences, and memory leaks are some examples of things that can make software
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Command Line Interface Guidelines
PDFを高品質なマークダウンに変換する方法｜すぅ | AI駆動PM
Building a tiny Linux from scratch
プロと読み解くRuby 3.4 NEWS - STORES Product Blog
OOP: the worst thing that happened to programming
BigQuery Scriptingの便利な使い方をまとめてみた - yasuhisa's blog
Writing a C compiler in 500 lines of Python
An Opinionated Guide to xargs
Announcing .NET 10 - .NET Blog
AWS API Gateway HTTPのAuthorizer設定 | 外道父の匠
Replit — How to train your own Large Language Models
The yaml document from hell
RFC 9562: Universally Unique IDentifiers (UUIDs)
Python is a Compiled Language
Issue 45 - Markdown is Holding You Back
Xilem: an architecture for UI in Rust
Font with Built-In Syntax Highlighting
The path to implementing a programming language
New for App Runner – VPC Support | Amazon Web Services
Kalyn: a self-hosting compiler for x86-64
Patterns for Building LLM-based Systems & Products
Lies we tell ourselves to keep using Golang
July 2022 (version 1.70)
How the GNU coreutils are tested