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ExternalSoftware Engineering
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AWS Waddles: What the Duck?

For over a decade, there's been a tiny ASCII duck hiding in plain sight. Open the page source for amazon.com, scroll all the way to the bottom, and there it is, surfing the web and quietly meowing at anyone who looks. <!-- _ .__(.)< (MEOW) \___) ~~~~~~~~~~~~~~~~~~--> A few years ago I stumbled onto this meowing duck, and it turns out the internet had too. MEOW has lived in that source code for years. If you've never seen it, go look now! One day I thought, why not bring t

awswatercoolerwebdev
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ExternalSoftware Engineering
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How Meta's AI Support Bot Got Tricked Into Hijacking Instagram Accounts

The Incident In June 2026, Krebs on Security reported that hackers were circulating step-by-step instructions on Telegram showing how to manipulate Meta's AI support assistant into resetting Instagram account passwords — without proper authorization. The attack wasn't a SQL injection or an OAuth exploit. It was a prompt injection: crafted user inputs designed to override the bot's intended behavior. The results were concrete and embarrassing. High-profile accounts — including the Obama White H

securityaillm
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ExternalSoftware Engineering
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Why the SDLC Is Cracking Under the Weight of AI

Why the SDLC Is Cracking Under the Weight of AI Three decades of engineering orthodoxy and the shift no one is talking about clearly enough I've been thinking a lot about a specific kind of organizational irony that I'm watching play out across engineering teams right now. A company buys into the AI productivity narrative — they roll out GitHub Copilot, or Claude, or some combination of both — and for the first two weeks, developers feel like superheroes. Code that used to take a da

aimachinelearningllm
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ExternalSoftware Engineering
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Why I Stopped Ignoring Position Size (and What It Taught Me About Stops)

Why I Stopped Ignoring Position Size (and What It Taught Me About Stops) Quick context (why you're writing this) Here's the thing: I spent a whole weekend back‑testing a shiny mean‑reversion strategy on EUR/USD. The equity curve looked like a rocket ship — until I looked at the trade‑by‑trade P&L and saw a single 3% loss wiping out two weeks of profit. I was shocked. Turns out I was sizing every trade at a fixed 1% of equity, regardless of volatility, and my stop loss was a static 5

tradingfinancecrypto
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ExternalSoftware Engineering
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I built a free alternative to CodeCrafters, because it's 2026 and I'm done paying to learn

I'll be upfront: I love the CodeCrafters idea. Building real systems from scratch instead of grinding another tutorial is genuinely how a lot of this stuff finally clicks. But every time I went to commit, the price stopped me cold. And somewhere around the tenth time I closed that pricing page, I had the obvious thought: it's 2026, why am I being asked to pay this much just to learn by building? So I built the thing I wanted instead. It's called Ship That Code, it's run under my company Echoed L

learningprogrammingshowdev
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ExternalSoftware Engineering
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Frontend System Design Interviews: What They Are, Why They Matter, and How to Actually Prepare

For mid-to-senior developers who want to stop winging it. If you've been a developer for 3+ years and you're targeting senior roles, there's a round in your upcoming interviews that will either make or break your offer — and it's not the LeetCode round. It's the Frontend System Design interview. Most developers underprepare for it. Some don't even know it exists until they're sitting in one. And if you're in the "I'll figure it out in the room" camp — this post is especially for you. The market

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