This past month, I have been enthralled by the Rust programming language given its unique edge for writing memory-safe, modern programs. Over the years, several languages have emerged as the most preferred by engineers to write resilient, backend software. The tides have shifted from Java/C++ into Go and Rust, which combine decades of programming language theory to build tools that are effective i
関数型はプログラミングスタイル
「関数型プログラミングは関数型言語じゃないとできないんでしょ？」という質問をたまに受けます。答えは「いいえ」です。もちろん、言語のサポートはあれば越したことはないです。 そもそも命令型及び関数型はプログラミングスタイルです。そして、命令型と関数型の間は0/1ではなく、グラデーションがあります。 なので、関数型プログラミングは関数型言語以外でも使えますし、プログラムをよい設計へ導く考え方ですよ、というのがこの記事の主張です。コード例も交えて説明してみます。 関数型へのアプローチ ロジックを書くとき 可変の変数(var)を使わず、不変の変数(val)を使う 可変のオブジェクト(mutable)を使わず、不変のオブジェクト(immutable)を使う voidやUnitなどの戻り値のない関数は使わず、戻り値を返す(高階)関数を使う 関数を定義するとき 参照透明な関数を定義する 必ず意味のある戻り
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. 2slides - An MCP server that provides tools to convert content into slides/PPT/presentation or generate slides/PPT/presentation with user intention. ActionKit by Paragon - Connect to 130+ SaaS inte
> 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
awesome-scalability
The Patterns of Scalable, Reliable, and Performant Large-Scale Systems View the Project on GitHub View On GitHub An updated and organized reading list for illustrating the patterns of scalable, reliable, and performant large-scale systems. Concepts are explained in the articles of prominent engineers and credible references. Case studies are taken from battle-tested systems that serve millions to
タイムゾーン呪いの書 (Java 編)
「タイムゾーン呪いの書」は、もともと 2018年に Qiita に投稿した記事でしたが、大幅な改訂を 2021年におこない、同時にこちらの Zenn に引っ越してきました。この改訂で記事全体が長大になったので、「知識編」・「実装編」・「Java 編」と記事を分けることにしました。 この「Java 編」は、「知識編」と「実装編」に続く最終章です。本記事全体を通して、「知識編」「実装編」を読んでいることを前提にしているので、ご注意ください。 はじめに 「知識編」と「実装編」では、言語やソフトウェア特有の話にはあまり踏み込まずに、時刻とタイムゾーンについてなるべく一般論を書いてきました。そんな中でも Java の JSR 310: Date and Time API は何度も参照しています。 JSR 310 は時刻やタイムゾーンという概念をけっこう上手に一般化していて、一般論の検討にもいいモデル
この記事はScala Advent Calendar 2023の12日目だ! Scala 3のマクロを書く上で役に立つ, メタれたTipsたちを紹介するぜ! 勢いに任せて書いていくからサンプルコードがちゃんと動かなかったらごめんな. 一応, Scala 3.3.1を想定しているぞ. マクロ 1. メソッドをマクロとして定義する 2. マクロの本体を実装する 3. マクロ実装の記法の意味を知る 4. マクロで生成されるコードの内容を確認する 5. 引数の式を評価せずに使う 6. 返り値の型をマクロの実行結果によって決める 7. マクロの返り値の型を制限する 8. マクロの返り値の型を書かない 9. マクロで計算された型をテストする 10. マクロで計算された型をScalaTestでテストする 式 11. 定数式の値を得る 12. 定数式でなければコンパイルエラーにする 13. 定数値の式を作
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
Temporal: The 9-Year Journey to Fix Time in JavaScript
Welcome to our blog! I'm Jason Williams, a senior software engineer on Bloomberg's JavaScript Infrastructure and Terminal Experience team. Today the Bloomberg Terminal runs a lot of JavaScript. Our team provides a JavaScript environment to engineers across the company. Bloomberg may not be the first company you think of when discussing JavaScript. It certainly wasn't for me in 2018 before I worked
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
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
The history and future roadmap of the AWS CloudFormation Registry | Amazon Web Services
AWS DevOps & Developer Productivity Blog The history and future roadmap of the AWS CloudFormation Registry AWS CloudFormation is an Infrastructure as Code (IaC) service that allows you to model your cloud resources in template files that can be authored or generated in a variety of languages. You can manage stacks that deploy those resources via the AWS Management Console, the AWS Command Line Int
What Makes Rust Unique? Why is UI in Rust So Hard? Functional UI to the Rescue If you’ve read Hacker News recently, it’s hard to not think that Rust is the future: it’s being used in the Linux kernel and in the Android OS, by AWS for critical infrastructure, and in ChromeOS and Firefox. However, as wonderful as Rust is–it has yet to take off as a general language for building UI. In 2019, “GUI” wa
Amazon Linux 2023, a Cloud-Optimized Linux Distribution with Long-Term Support | Amazon Web Services
AWS News Blog Amazon Linux 2023, a Cloud-Optimized Linux Distribution with Long-Term Support 11/17/2025 Update: Amazon Linux 2 end of support date (End of Life, or EOL) has been extended to 2026-06-30. I am excited to announce the general availability of Amazon Linux 2023 (AL2023). AWS has provided you with a cloud-optimized Linux distribution since 2010. This is the third generation of our Amazon
👋 This page was last updated ~4 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
You’ve reached computer programming nirvana. Your journey has led you down many paths, including believing that God wrote the universe in LISP, but now the truth is clear in your mind: every problem can be solved by writing one more compiler. It’s true. Even our soon-to-be artificially intelligent overlords are nothing but compilers, just as the legends foretold. That smart contract you’ve been wr
Statically typed programming languages can help catch mismatches between the kinds of values a program is intended to manipulate, and the values it actually manipulates. While there have been many bytes spent on discussions of whether this is worth the effort, some programming language designers believe that the type checking in current languages does not go far enough. Koka, an experimental funct
Introduction # Over the past years, the adoption of RocksDB increased dramatically. It became a standard for embeddable key-value stores. Today RocksDB runs in production at Meta, Microsoft, Netflix, Uber. At Meta RocksDB serves as a storage engine for the MySQL deployment powering the distributed graph database. Big tech companies are not the only RocksDB users. Several startups were built around
Shai Hulud Strikes Again (v2)Another wave of Shai-Hulud campaign has hit npm with more than 500 packages and 700+ versions affected. Update: November 26, 2025 PostHog has published a detailed post mortem describing how one of its GitHub Actions workflows was abused as an initial access vector for Shai Hulud v2. An attacker briefly opened a pull request that modified a script executed via pull_requ
Manuel Cerón
Last year I finally decided to learn some Rust. The official book by Steve Klabnik and Carol Nichols is excellent, but even after reading it and working on some small code exercises, I felt that I needed more to really understand the language. I wanted to work on a small project to get some hands-on experience, but most of my ideas didn’t feel very well suited for Rust. Then I started reading the
If you are a Rubyist, you’ve likely been writing # frozen_string_literal: true at the top of most of your Ruby source code files, or at the very least, that you’ve seen it in some other projects. Based on informal discussions at conferences and online, it seems that what this magic comment really is about is not always well understood, so I figured it would be worth talking about why it’s there, w
Build and Deploy Docker Images to AWS using EC2 Image Builder | Amazon Web Services
AWS DevOps & Developer Productivity Blog Build and Deploy Docker Images to AWS using EC2 Image Builder The NFL, an AWS Professional Services partner, is collaborating with NFL’s Player Health and Safety team to build the Digital Athlete Program. The Digital Athlete Program is working to drive progress in the prevention, diagnosis, and treatment of injuries; enhance medical protocols; and further i
V Language Review (2022)
V is a programming language promising to be “Simple, fast, safe, compiled. For developing maintainable software.” V has a controversial past but what is the state of V in 2022? Is V worth checking out? In this post, we’ll take a look at V as it exists in May 2022. TLDR Read the summary Rules of engagement I’ll be using the current version of V built from git which is 50ab2cfd1ae02d4f4280f38c60b8db
2021年にブックマークした記事まとめ - ぷらすのブログ
2021年にPocketに保存した記事をマークダウン形式で出力するツール. Contribute to p1ass/list-pocket-saved-items development by creating an account on GitHub. 注意: タグはかなり適当 バックエンド Go Nintendo Switch™ ネイティブバイナリへの Go コンパイルを成功させた話 Go の入力バリデーションパッケージ ozzo-validation を試した。 k0kubun/pp: Colored pretty printer for Go language OpenTelemetry in Go Go のロギングライブラリ 2021 年冬 GraphQL の静的解析基盤を作った Go のリリースプロセスとブランチ戦略 Go 1.16 の signal.NotifyContext
Adopting Wide Event-style instrumentation has been one of the highest-leverage changes I've made in my engineering career. The feedback loop on all my changes tightened and debugging systems became so much easier. Systems that were scary to work on suddenly seemed a lot more manageable. Lately there have been a lot of good blog posts on what "Wide Events" mean and why they are important. Here are
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
Rust Language Cheat Sheet 26. August 2021 Contains clickable links to The Book , Rust by Example , Std Docs , Nomicon , Reference . Data Structures Data types and memory locations defined via keywords. Example Explanation struct S {} Define a struct with named fields. struct S { x: T } Define struct with named field x of type T. struct S (T); Define "tupled" struct with numbered field .0 of type
Expert Generalists
As computer systems get more sophisticated we've seen a growing trend to value deep specialists. But we've found that our most effective colleagues have a skill in spanning many specialties. We are thus starting to explicitly recognize this as a first-class skill of “Expert Generalist”. We can identify the key characteristics of people with this skill - and thus recruit and promote based on it. We
Introduction: Density Is King (With a Tiny VM) I've previously come to the conclusion that there's little reason for using bytecode in the modern world, except in order to get more compact code, for which it can be very effective. So, what kind of a bytecode engine will give you more compact code? Suppose I want a bytecode interpreter for a very small programming environment, specifically to minim
Common Lisp VS Racket. Feedback from (common) lispers.
Common Lisp VS Racket - testimonies.md Developer experience, libraries, performance… (2021/11) I'll preface this with three things. 1. I prefer schemes over Common Lisps, and I prefer Racket of the Schemes. 2. There is more to it than the points I raise here. 3. I assume you have no previous experience with Lisp, and don't have a preference for Schemes over Common Lisp. With all that out of the wa
A Vision for Future Low-Level Languages I’ve had this vision in my head for quite a while now on what code written in a low-level language could look like. This vision has shaped my design of Ante and although I’ve alluded to it before, I’ve never explicitly stated it until now. Now, what makes a language low-level is a bit contentious. I’m using it here to describe a group of languages I have no
Noble Numbat Release Notes Table of Contents Introduction New features in 24.04 LTS Known Issues Official flavours More information Introduction These release notes for Ubuntu 24.04 LTS (Noble Numbat) provide an overview of the release and document the known issues with Ubuntu and its flavours. For details of the changes applied since 24.04, please see the 24.04.2 change summary. Support lifespan
This isn’t another AI-generated blog post about generic security practices. It contains detailed instructions on protecting Node.js applications from supply-chain attacks and describes best practices for security in any programming language. According to the GitHub report, The state of open source and rise of AI in 2023, JavaScript and TypeScript are the #1 and #3 most popular languages hosted on
こんにちは、アソビュー技術広報チームです。 アソビューでは、毎週「テックトーク」という社内エンジニアLT会を実施しています。 テックトークでの発表内容は開発組織の皆に共有したいことならどんなテーマでもOKとしています。 先日、開発メンバー企画のJavaをテーマにした「好きなJavaクラス発表ドラゴンLT」を開催しました。このブログではそのレポートを掲載します。 イベント開催の目的 今回の「好きなJavaクラス発表ドラゴン」LT会は、インターネットミームの「好きな惣菜発表ドラゴン」にインスパイアされた企画です。 気軽にJavaのクラスについて好きな理由や使い方、あるある、思い出などを発表することで、組織内の関係性構築を目的としています。 普段の開発でよく使うクラスや、個人的に思い入れのあるクラス、もはやクラスの枠組みを越えたものも含めて、様々な切り口での発表がありました。 それでは発表！ 7
Introducing global endpoints for Amazon EventBridge | Amazon Web Services
AWS Compute Blog Introducing global endpoints for Amazon EventBridge This post is written by Stephen Liedig, Principal Serverless Specialist SA. Last year, AWS announced two new features for Amazon EventBridge that allow you to route events from any commercial AWS Region, and across your AWS accounts. This supported a wide range of use cases, allowing you to implement easily global event delivery
TL;DRClojure is a great programming language due to its functional nature, lack of objects / concentration on primitive values and the vast JVM eco system available via its seamless Java interopRecruiting and building engineering teams of Clojure engineers is challenging compared to other programming languages due to the lack of its popularity and the absence of a large pool of experienced enginee
Should you use OCaml for web projects? Web development trends are a hotly debated topic in the computer programming world and the familiar faces of languages and frameworks are unlikely to change: hypertext markup language or HTML, CSS, and JavaScript are the core technologies (with server-side technologies such as PHP, Python, etc.), and React, Vue, Svelte, and Angular are proving to be as popula
By Zed A. ShawC++ Is An Absolute BlastI want you to ask yourself an honest question. When was the last time you actually had fun in programming? Looking back, I don't think I've actually had fun in programming for close to...10 years? I don't have fun with JavaScript, Python, Ruby, C, nothing. When I say "fun" I mean, you genuinely were excited to work on your project and the whole time you work o
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Starlark is a small programming language, designed as a simple dialect of Python and intended primarily for embedded use in applications. Some people might say it’s a bit like Lua with Python syntax, but I think there are many interesting bits to discuss. The language is now open-source and used in many other applications and companies. As I led the design and implementation of Starlark, I’d like
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Rust concepts I wish I learned earlier
OOP: the worst thing that happened to programming
Scala 3のマクロTips 100連発 - 貳佰伍拾陸夜日記
Python 3.13 gets a JIT
What a good debugger can do 🔮
Why is building a UI in Rust so hard?
Lies we tell ourselves to keep using Golang
The life and times of an Abstract Syntax Tree
The Koka programming language
How RocksDB works - Artem Krylysov
Shai Hulud Strikes Again (v2) - Socket
Frozen String Literals: Past, Present, Future?
A Practitioner's Guide to Wide Events | Jeremy Morrell
What's New in Emacs 28.1?
https://cheats.rs/rust_cheat_sheet.pdf
bytecode interpreters for tiny computers ⁑ Dercuano
A Vision for Future Low-Level Languages
Ubuntu 24.04 LTS (Noble Numbat) Release Notes
Secure Node.js Applications from Supply Chain Attacks
社内LT会で「好きなJavaクラス発表ドラゴンLT」を開催しました - asoview! Tech Blog
6 Years of Professional Clojure
OCaml Web Development: Essential Tools and Libraries in 2025
C++ Is An Absolute Blast
Java Best Practices | The IntelliJ IDEA Blog
An Overview of the Starlark language