Why I Stopped Using Redux
Redux was a revolutionary technology in the React ecosystem. It enabled us to have a global store with immutable data and fixed the issue of prop-drilling in our component tree. For sharing immutable data across an application, it continues to be an excellent tool that scales really well. But why do we need a global store in the first place? Are our frontend applications really that complex or are
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
One of the most impactful things we’ve worked on in TypeScript 5.0 isn’t a feature, a bug fix, or a data structure optimization. Instead, it’s an infrastructure change. In TypeScript 5.0, we restructured our entire codebase to use ECMAScript modules, and switched to a newer emit target. What to Know Now, before we dive in, we want to set expectations. It’s good to know what this does and doesn’t m
Data encryption at rest is a must-have for any modern Internet company. Many companies, however, don't encrypt their disks, because they fear the potential performance penalty caused by encryption overhead. Encrypting data at rest is vital for Cloudflare with more than 200 data centres across the world. In this post, we will investigate the performance of disk encryption on Linux and explain how w
ボカロ初心者の音楽好きが選ぶ「ボカロ名盤」60枚
最近、これまで触れなかったボーカロイドの音楽（以下、ボカロ音楽）を聴き始めました。 そして色々聴くにつれ、次第にボカロ音楽の奥深さと幅広さに魅了されるように。 しかし、「ニコニコ動画」が中心の文化であることから、「アルバムで視聴する人」は少ないように思います。 視聴の中心は曲単位によるもの また（かくいう自分もそうだったのですが）ボカロ音楽に「どれも同じような曲調」という偏見を持つ人が少なからずいる気がします。 本記事では、様々な国／ジャンルのボーカロイドのアルバムを紹介し、「ボカロの魅力」をお伝えできればと思います。 なお、ボカロ音楽について自分もまだ勉強中ですので、もし説明に誤りなどございましたら、ご指摘頂けますと助かります。 この記事で、自分のようにボカロ音楽を聴き始める人が少しでも増えれば幸いです。 ＊本記事ではUTAUなど「本来はボカロに含めない」合成音声も、便宜上「ボカロ」で取
content-visibility: the new CSS property that boosts your rendering performance | Articles | web.dev
The content-visibility property, launching in Chromium 85, might be one of the most impactful new CSS properties for improving page load performance. content-visibility enables the user agent to skip an element's rendering work, including layout and painting, until it is needed. Because rendering is skipped, if a large portion of your content is off-screen, leveraging the content-visibility proper
When a rewrite isn’t: rebuilding Slack on the desktop - Slack Engineering
A new version of Slack is rolling out for our desktop customers, built from the ground up to be faster, more efficient, and easier to work on. Conventional wisdom holds that you should never rewrite your code from scratch, and that’s good advice. Time spent rewriting something that already works is time that won’t be spent making our customers working lives simpler, more pleasant, and more product
Today we’re excited to announce the release of TypeScript 4.5! If you’re not yet familiar with TypeScript, it’s a language that builds on JavaScript by adding statically checked types. When you use static types, you can run the TypeScript compiler to check for bugs like typos and mismatches in the shapes of your data, and get handy suggestions. These types don’t change your program, and you can re
copilot-explorer
Copilot Internals | thakkarparth007.github.io Github Copilot has been incredibly useful to me. It can often magically read my mind and make useful suggestions. The thing that surprised me the most was its ability to correctly “guess” functions/variables from surrounding code – including from other files. This can only happen, if the copilot extension sends valuable information from surrounding cod
Opens in a new windowOpens an external siteOpens an external site in a new window After years of native mobile development, we’ve decided to go full steam ahead building all of our new mobile apps using React Native. As I’ll explain, that decision doesn’t come lightly. Each quarter, the majority of buyers purchase on mobile (with 71% of our buyers purchasing on mobile in Q3 of last year). Black Fr
James Lindenbaum Szymon Kaliski Joshua Horowitz November 2022 With pen and paper, anyone can write a journal entry, draw a diagram, perform a calculation, or sketch a cartoon. Digital tablets like the iPad or reMarkable can adapt pen and paper into the world of digital media. In doing so, they trade away some of paper’s advantages like cheapness and tangibility. In exchange, we get new computation
Over the past four years, we've been working hard on rebuilding our desktop client's sync engine from scratch. The sync engine is the magic behind the Dropbox folder on your desktop computer, and it's one of the oldest and most important pieces of code at Dropbox. We're proud to announce today that we've shipped this new sync engine (codenamed "Nucleus") to all Dropbox users. Rewriting the sync en
AWS Lambda Under the Hood
Transcript Danilov: We'll talk about AWS Lambda, how it's built, how it works, and why it's so cool. My name is Mike Danilov. I'm a Senior Principal Engineer at AWS Serverless. A decade ago, I joined EC2 networking team, and it was a fantastic ride. Then, five years back, I heard about Lambda. I really liked the simplicity of the idea. We run your code in the cloud, no servers needed, so I joined
Diving Deep on S3 ConsistencyApril 20, 2021 • 1938 words I recently posted about Amazon S3 and how it’s evolved over the last 15 years since we launched the service in 2006 as “storage for the internet.” We built S3 because we knew customers wanted to store backups, videos, and images for applications like e-commerce web sites. Our top design priorities at the time were security, elasticity, relia
Best practices for developing cloud applications with AWS CDK | Amazon Web Services
AWS DevOps Blog Best practices for developing cloud applications with AWS CDK April 20, 2022: Updates are available in the Best practices topic of the AWS CDK documentation. The documentation is the most up-to-date resource going forward. In this post, we discuss strategies for organizing the development of complex cloud applications with large teams, using the AWS Cloud Development Kit (AWS CDK)
Starting today, Cloudflare’s API Gateway can protect GraphQL APIs against malicious requests that may cause a denial of service to the origin. In particular, API Gateway will now protect against two of the most common GraphQL abuse vectors: deeply nested queries and queries that request more information than they should. Typical RESTful HTTP APIs contain tens or hundreds of endpoints. GraphQL APIs
For many years I used the Julia programming language for transforming, cleaning, analyzing, and visualizing data, doing statistics, and performing simulations. I published a handful of open-source packages for things like signed distance fields, nearest-neighbor search, and Turing patterns (among others), made visual explanations of Julia concepts like broadcasting and arrays, and used Julia to ma
Attributes and properties are fundamentally different things. You can have an attribute and property of the same name set to different values. For example: <div foo="bar">…</div> <script> const div = document.querySelector('div[foo=bar]'); console.log(div.getAttribute('foo')); // 'bar' console.log(div.foo); // undefined div.foo = 'hello world'; console.log(div.getAttribute('foo')); // 'bar' consol
訳文；「"好奇心駆動型の冒険"とでも言うべき特殊なタイプの冒険に報酬を与えるゲームをつくりたい、それが『Outer Wilds』の主目的です」Ａ・ビーチャム氏の論文より - すやすや眠るみたくすらすら書けたら
翻訳の秋が今年もきました。また去年みたく面白い記事をいくつか見つけて勝手に紹介したいところです！ ｛また翌年も、これに関連する論考を勝手に紹介しました。（訳文；「そこにはなんの報酬もありません。このゲームが何を為していてどう機能しているのか、ただただ見ていたかったのです」ジェンキンズ、カーソン、ホッキング、『Outer Wilds』へつづく２，３の論考） 訳文2万1000字＋感想1万6千字くらい。 ※言及したトピックについてネタバレした文章がつづきます。ご注意ください※ 訳した人・なぜ訳した？ 内容ざっと説明 ('23追記)ネタバレをある程度避けて論文のエッセンスを味わえる、オフィシャルな記事がオフィシャルな人々から出たよ 論文訳文 アレックス・ビーチャム著『Outer Wilds: a game of curiosity-driven space exploration :: Unive
Build a CQRS event store with Amazon DynamoDB | Amazon Web Services
AWS Database Blog Build a CQRS event store with Amazon DynamoDB The command query responsibility segregation (CQRS) pattern, derived from the principle of command-query separation, has been popularized by the domain-driven design community. CQRS architectures that use event sourcing save generated events in an append-only log called an event store. By using event sourcing, you can, among other ben
How we built Pingora, the proxy that connects Cloudflare to the Internet
How we built Pingora, the proxy that connects Cloudflare to the Internet09/14/2022 This post is also available in 简体中文 and 繁體中文. IntroductionToday we are excited to talk about Pingora, a new HTTP proxy we’ve built in-house using Rust that serves over 1 trillion requests a day, boosts our performance, and enables many new features for Cloudflare customers, all while requiring only a third of the CP
LogLog Games
The article is also available in Chinese. Disclaimer: This post is a very long collection of thoughts and problems I've had over the years, and also addresses some of the arguments I've been repeatedly told. This post expresses my opinion the has been formed over using Rust for gamedev for many thousands of hours over many years, and multiple finished games. This isn't meant to brag or indicate su
What We Learned from a Year of Building with LLMs (Part I)
Join the O'Reilly online learning platform. Get a free trial today and find answers on the fly, or master something new and useful. Learn more 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
GitLab has at most eight layers in the company structure (Associate/Intermediate/Senior, Manager, Senior Manager, Director, Senior Director and/or VP, Executives, CEO). You can skip layers but you generally never have someone reporting to the same layer (Example of a VP reporting to a VP). Dual Career Path at GitLab A dual career path is a career path that allows upward mobility for team members w
Despite considering myself a cryptographer, I have not found myself particularly drawn to “crypto.” I don’t think I’ve ever actually said the words “get off my lawn,” but I’m much more likely to click on Pepperidge Farm Remembers flavored memes about how “crypto” used to mean “cryptography” than I am the latest NFT drop. Also – cards on the table here – I don’t share the same generational exciteme
Some people lament the fact that, even though the Steam Deck is the Switch Pro we’ve been waiting for, they can’t play the Nintendo exclusives on it, such as the Mario, Zelda, and Metroid series. Well, ever heard of emulation? It is actually possible to play your favorite Nintendo games on PC, or your Steam Deck. Switch emulation is possible thanks to Yuzu and Ryujinx. Both emulators are open-sour
A Guide to the Go Garbage Collector - The Go Programming Language
Introduction This guide is intended to aid advanced Go users in better understanding their application costs by providing insights into the Go garbage collector. It also provides guidance on how Go users may use these insights to improve their applications' resource utilization. It does not assume any knowledge of garbage collection, but does assume familiarity with the Go programming language. Th
Sorting colors in JavaScript
Sorting colors in JavaScriptJune 22, 2021How to sort colors in JavaScript? Let me tell you a story first. In the project I'm working on right now we used to have 134 colors in use! WTF?! you say. Once I discovered that I thought I'm going to show that to my colleagues, and we will address the problem. Unfortunately, I'm a very visual person (so to say) and I couldn't stand the very random order of
OpenXavaという、JPAエンティティだけ定義すればCRUDな画面を作ってくれるローコードフレームワークがあるので、試してみました。 Javaわかる人には手軽に使えてよさそう。 https://www.openxava.org/ OpenXavaプロジェクトの作成 Maven Archetypeが用意されているので、こんな感じのMavenコマンドで始めれます。 mvn archetype:generate -DarchetypeGroupId=org.openxava -DarchetypeArtifactId=openxava-archetype -DarchetypeVersion=RELEASE -DgroupId=com.yourcompany -DartifactId=invoicing -DinteractiveMode=false しかし、Mavenコマンドを入力するのは
GitHub - alievk/avatarify-python: Avatars for Zoom, Skype and other video-conferencing apps.
Photorealistic avatars for video-conferencing. Avatarify Python requires manually downloading and installing some dependencies, and is therefore best suited for users who have some experience with command line applications. Avatarify Desktop, which aims to be easier to install and use, is recommended for most users. If you still want to use Avatarify Python, proceed to the install instructions. Ba
Abstract: In recent years, academic research and investigative reports have brought to light several cases of computational propaganda (i.e. orchestrated attempts to manipulate public opinion or the outcome of elections via social media), as well as proof that filter algorithms amplify right-wing conservative content on Japanese social media. Piecing together the scattered pieces of a puzzle, this
Lessons from Writing a Compiler
The prototypical compilers textbook is: 600 pages on parsing theory. Three pages of type-checking a first-order type system like C. Zero pages on storing and checking the correctness of declarations (the “symbol table”). Zero pages on the compilation model, and efficiently implementing separate compilation. 450 pages on optimization and code generation. The standard academic literature is most use
Hello everyone, Asahi Lina here!✨ marcan asked me to write an article about the M1 GPU, so here we are~! It’s been a long road over the past few months and there’s a lot to cover, so I hope you enjoy it! What’s a GPU?You probably know what a GPU is, but do you know how they work under the hood? Let’s take a look! Almost all modern GPUs have the same main components: A bunch of shader cores, which
Paul Louth had a great development team at Meddbase, the healthcare software company he founded in 2005. But as the company grew, so did their bug count. That’s expected, up to a point. More code and more features mean more defects. But the defect rate was growing faster than Louth expected. “We were seeing more and more of the same types of bugs,” Louth says. “It was clear that there was an issue
Not long ago I decided to improve the loading times of my website. It already loads pretty fast, but I knew there was still room for improvement and one of them was CSS loading. I will walk you through the process and show you how you can improve your load times as well. Why loading time matters? Permalink to “Why loading time matters?” # Because Time is money. That proverb is especially true for
CommunityOpen SourceBring your monorepo down to size with sparse-checkoutGit 2.25.0 includes a new experimental git sparse-checkout command that makes the existing feature easier to use, along with some important performance benefits for large repositories. This post was written by Derrick Stolee, a Git contributor since 2017 who focuses on performance. Some of his contributions include speeding u
How Google SRE and Developers Collaborate - IT Revolution
July 12, 2022 How Google SRE and Developers Collaborate This post was adapted from the paper “How Google SRE and Developers Collaborate by Christof Leng, Tracy Ferrell, Alex Bligh, Michal Gefen, Betsy Beyer with help from Salim Virji from the Spring 2022 DevOps Enterprise Journal. Google’s Site Reliability Engineering (SRE) team is a specialist engineering organization focused on designing, buildi
Sometimes our sites need a little sprinkling of content management. Not always. Not a lot. But a bit. The CMS market is thriving with affordable, approachable products, so we’re not short of options. Thankfully, it is a very different world to the one that used to force companies to splash out a ga-jillionty-one dollars (not an exact cost: I rounded to the nearest bazillion) for an all-singing, al
奈良県でリモートワーク中の玉井です。 日本では全くと言っていいほど知名度がありませんが、国外（アメリカ？）のデータ分析界隈では既にメジャーな存在になりつつある「dbt」（data build tool）について、ご紹介します。 dbtとは？ 公式情報など 公式はこちら（ググラビリティが低い名前なので検索しづらい）。 （死ぬほどざっくりいうと）データ変換を効率よく実施できるツールです。SaaSとしての提供になっているので（最初からあったわけではなく、後から登場したようです）、Webブラウザさえあれば、すぐに利用することができます。 主な特徴 ELTの「T」を担当するツール データの前処理における作業をELT（Extract、Load、Transform）と呼称することがありますが、それの「T（変換）」を担当します。E（抽出）やL（ロード）はやりません。 そして、その変換処理をどうやって設定す
Extending SQLite with Rust to support Excel files as virtual tables
This article explains how SQLite can be extended with Rust. In particular, it will outline SQLite’s mechanism called virtual tables and showcase how we can use it from Rust programming language. In the end, we will have a working extension that can be dynamically loaded and used from SQLite. This article does not claim to be an exhaustive guide about extending SQLite with Rust, but I hope the read
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Writing a C compiler in 500 lines of Python
TypeScript's Migration to Modules - TypeScript
Speeding up Linux disk encryption
Announcing TypeScript 4.5 - TypeScript
React Native is the Future of Mobile at Shopify
Inkbase: Programmable Ink
Rewriting the heart of our sync engine
Diving Deep on S3 Consistency
Protecting GraphQL APIs from malicious queries
Why I no longer recommend Julia
HTML attributes vs DOM properties
Organizational Structure
My first impressions of web3
Emulating Nintendo Switch Games on Linux
Javaやさんに優しいローコードフレームワーク、OpenXavaを試す - きしだのHatena
Japan’s Shift to the Right: Computational Propaganda, Abe Shinzō’s LDP, and Internet Right-Wingers (Netto Uyo) - The Asia-Pacific Journal: Japan Focus
Tales of the M1 GPU - Asahi Linux
Functional programming is finally going mainstream
Optimizing CSS for faster page loads
Bring your monorepo down to size with sparse-checkout
Using Trello as a Super Simple CMS | CSS-Tricks
データ変換処理をモダンな手法で開発できる「dbt」を使ってみた | DevelopersIO