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Deno 1.14
Deno 1.14 improves Web Crypto support, adds customization options to deno fmt and deno lint, introduces URLPattern, and more.
New
The latest blog posts to take off on Hacker News. 21,828 posts.
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Version control without Git
If you have any question or suggestions about this tutorial, please file them as issues here .
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Why Authorization Is Hard
There's a fundamental tension in authorization. Is it business logic or authorization logic? Should it be in the app, or separate? Let’s talk about what makes a
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Automatic cipher suite ordering in Go’s crypto/tls
Go 1.17 is making TLS configuration easier and safer by automating TLS cipher suite preference ordering.
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How much faster is Java 17?
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PostgreSQL 15: default permissions for everyone is now restricted to db owner
PostgreSQL always allowed, by default, any user to connect to any database, and create new tables (and views, and so on) in “public" schema. The one that is created by default.
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Dynamic Queries in Ecto (Elixir Lang)
The macro Ecto Query dynamic/2 allows you to build query fragments and interpolate them into one large query. We get easy-to-manage query building in an accessible way. It allows you to control the parameters from the user and transparently create filtering of data stored in the database.
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OpenBSD's Pledge and Unveil from Python
Years ago, OpenBSD gained two new security system calls, pledge(2) (originally tame(2) ) and unveil . In both, an application surrenders capabilities at run-time. The idea is to perform initialization like usual, then drop capabilities before handling untrusted input, limiting unwanted side effects. This feature is…
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Multiperspective Diagramming – A guide for system engineers
A multiperspective diagramming guide for system, software, cloud, network, and other engineers.
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Go’ing Insane: Endless Error Handling
I’ve been using Go for a few years now, mostly in my open source project Lazygit. In my day job I use Ruby and Typescript, and I’ve also spent some time with Rust. Each of those languages have design quirks that can grind a developer’s gears, and although my own precious gears have been ground by every language I’ve…
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How to Crawl the Web with Scrapy
How to use the python web scraping framework Scrapy to crawl indeed.com. Learn data engineering strategies for getting actionable insights from public information.
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Functional programming is not popular because it is weird (2016)
I’ve seen people be genuinely puzzled about why functional programming is not more popular. For example I’m currently reading “Out of the Tar Pit” where after arguing for fu…
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Ship / Show / Ask: A modern branching strategy
Ship/Show/Ask is a branching strategy that helps teams wait less and ship more, without losing out on feedback.
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Minimal APIs at a glance in .NET 6
David Fowler doesn't have a blog. I think the psychic weight of having a blog ...
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Reverse-Engineering Apple Dictionary (2020)
Personal webpage of Fabian Mentzer.
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I got the J language working on OpenBSD
Yes, I am aware that I am interrupting our self-hosting PL/0 compiler series but I think it will be worth it. Earlier today, I got the J language system running on OpenBSD . I find it important to write these up, because it helps me preserve my own knowledge of what I did and hopefully it will help others porting…
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What Java Modules Are About
When the subject of Java modules comes up in online discussions every so often, I get the sense that many people misunderstand what it is that modules are supposed to do. That's understandable, as the name 'modules' does not evoke the precise purpose of the feature. There are many kinds of modules, even in the Java…
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Index bloat reduced in PostgreSQL v14
This article describes how PostgreSQL v14 reduces B-tree index bloat with "bottom-up index tuple deletion". A test case shows the difference.
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Coalton: How to Have Our (Typed) Cake and (Safely) Eat It Too, in Common Lisp
By Robert Smith, Elias Lawson-Fox, Cole Scott Updated July 1, 2025 by Robert Smith. Introduction Coalton is a statically typed functional programming language built with Common Lisp. We can load it like a normal Lisp library. CL-USER> (asdf:load-system "coalton") CL-USER> (in-package #:coalton-user) COALTON-USER> This…
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I want a better shell (2019)
I want a better shell.
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JSON Schema bundling formalised
JSON Schema
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The Future Shape of Ruby Objects
These are the notes for a talk I gave at RubyKaigi 2021, which is why they’re written as if we were talking and going through some slides and code together.
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Thoughts on Clojure UI framework
Ideas and inspirations for new Clojure framework for desktop apps
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Native Rust Support on Cloudflare Workers
Introducing the Cloudflare Workers Rust SDK: write your entire Worker in Rust, no JavaScript required.
8459
60x speed-up of Linux “perf”
The tool is great, but it uses perf to record and analyze profile data, and perf on Debian has a performance problem : when not linked against libbfd , it shells out to addr2line for every address it needs to look up. Thousands and thousands and thousands of incredibly short-lived processes.
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An Introduction to Type Level Programming in Haskell
Learn about type level programming by building a custom theming engine.