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Protected nothing
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DEV Community · Technology

Protected nothing

Field notes from a proof-of-concept food-diary tool built alongside one NHS dietetic team, not an official NHS product, no patient data anywhere in it. A privacy guardrail blocked its repository from going public. Traced through the code, it protected nothing that going public would...

the kilted dev
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Embeddings: Meaning as Numbers
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DEV Community · Technology

Embeddings: Meaning as Numbers

When you ask a chatbot for a pasta recipe, it doesn’t understand “pasta” the way you do. It sees a list of numbers. Those numbers are not random. They are arranged so that “pasta” sits close to “spaghetti” and far from “car.” This is an embedding. It turns meaning into coordinates that a machine can...

Internals Decoded
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When Your AI Skill Calls a Ghost: Retiring Zombie Models in Anthropic Skills
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DEV Community · Technology

When Your AI Skill Calls a Ghost: Retiring Zombie Models in Anthropic Skills

Imagine this scenario. You build an autonomous agent pipeline. You wire in standard skills, configure your API keys, grab a cup of coffee, and watch it tackle complex tasks. Everything feels futuristic. Then suddenly, a cold splash of reality hits your logs: Error: 404 Not Found - model 'claude-...

Aditya Gaurav
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When Code becomes cheap, Judgement becomes the craft
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DEV Community · Technology

When Code becomes cheap, Judgement becomes the craft

I have been thinking a lot lately about the future of software engineering craft, especially with AI doing more and more of engineering work faster. My view is that the craft will go through a significant shift in the next few years where some of the core engineering skills will become more relevant...

Bharat Sharma
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Object Storage vs File Storage: When to Use Which (2026)
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DEV Community · Technology

Object Storage vs File Storage: When to Use Which (2026)

I still see engineers storing user-uploaded photos in /var/www/uploads/ on an ext4 volume and wondering why their server falls over at 10M files. Meanwhile, the team next door threw the same photos into an S3 bucket and scaled to 100M files without breaking a sweat. The difference is the storage pa...

Ethan Carter
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Solving AI Amnesia: Why Your Coding Agents Needs Institutional Memory
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DEV Community · Technology

Solving AI Amnesia: Why Your Coding Agents Needs Institutional Memory

Solving AI Amnesia: Why Your Coding Agents Needs Institutional Memory Every developer using AI coding agents eventually hits the same wall. You spend three hours debugging a subtle race condition in an async worker. The agent finds an undocumented quirk in your queue library, applies a t...

AlexLeo
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From a Local Folder to Github
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DEV Community · Technology

From a Local Folder to Github

Introduction Git is a tool used to track changes made to a Git repository, while GitHub is a platform where Git repositories are stored and shared publicly or privately. In this article I will explain the procedure from a local folder to GitHub using Git and an SSH key as learnt at LuxDev...

Gloriah John
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Arrest warrant issued for wife of Massachusetts officer found dead at home
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The Guardian · World

Arrest warrant issued for wife of Massachusetts officer found dead at home

Woman remains missing more than five days after police found officer she was married to dead in their homeAn arrest warrant has been issued for a mental health advocate who remained missing on Sunday, more than five days after police found the Massachusetts officer she had been married to dead in th...

Associated Press and Guardian staff
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From brute force to optimal: leveling up like a Jedi
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DEV Community · Technology

From brute force to optimal: leveling up like a Jedi

The Quest Begins (The "Why") I still remember the first time I tried to solve the “maximum subarray sum” problem on a coding interview. I stared at the array, thought “hey, I’ll just check every possible subarray,” and started nesting loops like I was building a fortress. Three loops late...

Timevolt
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How to Block Disposable Email Signups Without SMTP Verification
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DEV Community · Technology

How to Block Disposable Email Signups Without SMTP Verification

Disposable email services make it easy to create temporary addresses that disappear shortly after signup. They can be useful for privacy, but they also create problems for applications that rely on email for account recovery, trial limits, community moderation, or fraud prevention. In this article...

nProejct
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Four products passed their tests. Then I tested them.
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DEV Community · Technology

Four products passed their tests. Then I tested them.

Every one of these had a green suite. 147 tests on the portfolio, 77 on the budget proxy, 53 on the conformance checker, 78 on the retrieval system. All passing. Each had a benchmark, a published result, and a live deployment. Then I wrote scenarios that hit the live URLs instead of the code, and o...

Raghuram
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Made a Telegram bot that pulls CVE PoCs + tracks blackhat news
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DEV Community · Technology

Made a Telegram bot that pulls CVE PoCs + tracks blackhat news

There's a neat little CLI tool called CVE2PoC — you give it a CVE, it pulls public PoCs, NVD info, checks if there's an exploit on GitHub or in Metasploit, whether it showed up in bug bounty writeups, nuclei templates, that kind of stuff. I forked it and added some functionality: search by tag (say...

whiskeybob
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AI Engineering for Web Developers: From Vibe Coding to Production
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DEV Community · Technology

AI Engineering for Web Developers: From Vibe Coding to Production

The End of 'Vibe Coding' For the past year, the industry has been enamored with 'vibe coding'—the act of throwing natural language prompts at an LLM and hoping the resulting code fits into your project. It was the "spark" phase of AI adoption, a necessary period of experimentation where w...

Nainik Mehta
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Streamux: Full RFC 9113 in Go with C abi
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DEV Community · Technology

Streamux: Full RFC 9113 in Go with C abi

Spent the last few weeks building an HTTP/2 server from scratch in Go. Full RFC 9113 - framing, HPACK, stream state machine, flow control, TLS enforcement, 145/146 h2spec tests passing. The fun part was RFC 9218 stream priorities. Browsers already send priority: u=N on every fetch. Most servers th...

Alex Day
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Excel Dynamic Arrays: FILTER, UNIQUE and SORT in One Formula
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DEV Community · Technology

Excel Dynamic Arrays: FILTER, UNIQUE and SORT in One Formula

By Michael Nocito, data analyst · Published August 8, 2026 By the end of this page you can pull a distinct list out of a column, extract every row matching a condition, sort a result without touching the source, chain all three into one line, and read the two error messages that only exist in this...

Michael Nocito
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Excel Drop Down Lists and Data Validation, and the Paste That Removes Them
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DEV Community · Technology

Excel Drop Down Lists and Data Validation, and the Paste That Removes Them

By Michael Nocito, data analyst · Published August 8, 2026 By the end of this page you can put a dropdown on a column in about a minute, keep its list somewhere that grows when the options grow, make a second dropdown depend on the first, write a rule that blocks a duplicate rather than a value, an...

Michael Nocito
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