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It's the Future
The CircleCI blog is your home for DevOps, continuous integration and delivery, and engineering productivity. Explore tutorials, guides, and best practices.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 80,813 posts.
5042
Twilio releases open source video conferencing apps for iOS, Android and web
Start your video app development with three new Twilio open sourced video collaboration applications for iOS, Android, and ReactJS for the Web.
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Elon Musk wanted an OpenAI for-profit
Elon Musk’s latest legal filing against OpenAI marks his fourth attempt in less than a year to reframe his claims. However, his own words and actions speak for themselves—in 2017, Elon not only wanted, but actually created, a for-profit as OpenAI’s proposed new structure.
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Apple delivers a new redesigned Maps for users in the United States
The newly redesigned Apple Maps was built from the ground up to let users in the US more easily navigate and explore the world.
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Intuit to Acquire Mailchimp for $12B
Read Intuit press releases going back to 2007, from earnings announcements to investor event news. Filter by year or show financial releases only.
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The Greatest Regex Trick Ever (2014)
Describes a regular expressions technique to match a word or pattern except in certain contexts: excluding tags, ignoring contents, word blacklist.
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Make LLVM Fast Again
Clang is an “LLVM native” C/C++/Objective-C compiler, which aims to deliver amazingly fast compiles […]
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5-min breathing workout lowers blood pressure as much as exercise, drugs (2021)
Strength training for your breathing muscles? Daily High-Resistance Inspiratory Muscle Strength Training lowers blood pressure and improves vascular health as
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The Anthropic Economic Index
Announcement of the new Anthropic Economic Index and description of the new data on AI use in occupations
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Lepton image compression: saving 22% losslessly from images at 15MB/s
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
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Multiple new macOS sandbox escape vulnerabilities
This is a blog post for my presentation at the conference POC2024. The slides are uploaded here.
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HashiCorp Boundary
Simple and secure remote access — to any system anywhere based on trusted identity.
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Web scraping for me, but not for thee
by guest blogger Kieran McCarthy There are few, if any, legal domains where hypocrisy is as baked into the ecosystem as it is with web scraping. Some of the biggest companies on earth—including Meta and Microsoft—take aggressive, litigious approaches to...
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Go version 1 is released
A major milestone: announcing Go 1, the first stable version of Go.
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EFF Wins Battle Over Secret Legal Opinions on Government Spying
San Francisco - The Electronic Frontier Foundation (EFF) has won its four-year Freedom of Information Act lawsuit over secret legal interpretations of a controversial section of the Patriot Act, including legal analysis of law enforcement and intelligence agency access to census records. The U.S....
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Horses: AI progress is steady. Human equivalence is sudden
AI progress is steady. Human equivalence is sudden.
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6 weeks of Claude Code
It is wild to think that it has been only a handful of weeks. Claude Code has considerably changed my relationship to writing and maintaining code at scale. I still write code at the same level of quality, but I feel like I have a new freedom of expression which is hard to fully articulate. Claude Code has decoupled…
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Cloudflare 1.1.1.1 Incident on July 14, 2025
On July 14th, 2025, Cloudflare made a change to our service topologies that caused an outage for 1.1.1.1 on the edge, resulting in downtime for 62 minutes for customers using the 1.1.1.1 public DNS Resolver as well as intermittent degradation of service for Gateway DNS. We’re deeply sorry for this outage. This outage…
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Why three prongs?
Why do AC cords need three prongs? If there is no positive or negative in AC systems, why do we have HOT and NEUTRAL? I attempt to shed light on some of these mysteries.
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REST is the new SOAP
A journey through a trendy hell
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The FBI stole an Instapaper server in an unrelated raid
UPDATE: The server has been returned. Please read.
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Milestone: 100M Certificates Issued
Let’s Encrypt has reached a milestone: we’ve now issued more than 100,000,000 certificates. This number reflects at least a few things: First, it illustrates the strong demand for our services. We’d like to thank all of the sysadmins, web developers, and everyone else managing servers for prioritizing protecting your…
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Writing a good design document
A guide
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A DIY M&Ms and Skittles sorting machine
This project, the M&Ms and Skittles sorting machine, was on my to-do list for a long time. I finally managed to complete the project after working on it for several months in my free time. The machine uses an Arduino microcontroller, stepper motors, an RGB colour sensor and 3D-printed parts to sort several types of…
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My Email Canary
Despite the fact that I use really long passwords and two-factor authentication wherever it's available I still worry that someone might b...
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No I don't want to turn on Windows Backup with One Drive
Microsoft is doing everything in its power to alienate users. When it's not enshittification, it's user hostility. You can't even dismiss forced reminders.