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Feature flags are great for rollout. They are a terrible substitute for authorization. A common pattern: ship an admin screen or a beta API behind a flag. Flip it off in production for most users. Flip it on for a few accounts. Ship. Move on. That controls product exposure . It does not control who is allowed to do the thing . What flags actually decide A flag answers questions like: Is this feature ready for this cohort? Should we show the new UI in staging? Are...

Microsoft Paint 3D is an interesting example of software that has been discontinued without immediately becoming unusable. The application is no longer actively developed or distributed in the Microsoft Store, but existing installations continue to work and the final Windows package can still run on compatible systems. Why people still use Paint 3D Despite the name, Paint 3D is useful for more than basic 3D work. Typical tasks include: removing image backgrounds work...

The uncomfortable 2026 reality is that “FHIR-ready” no longer means integration-ready. In April, CMS proposed extending electronic prior authorization requirements to drugs while impacted payers are already approaching January 1, 2027 deadlines for Provider Access, Payer-to-Payer, Prior Authorization, and expanded Patient Access APIs. That puts Healthcare API integration under a harsher test: can payer, provider, EHR, and patient-portal data move securely, consistently, and with usable c...

I was reviewing a "top 3 products per category" report last week and found a bug that had been live for months. One category showed four products. Another showed the same product twice. The query used RANK() . It should have used ROW_NUMBER() . They look interchangeable in a tutorial and behave completely differently the moment your data has ties. The setup Here is a small sales table with an obvious tie — two products in the same category sold 120 units: CREATE ...

A query that returns an empty result is usually a wrong WHERE clause. But there is one class of empty result that confuses even experienced people, because every row it filters on looks correct: NOT IN with a NULL in the subquery. The failure Two tables. Customers, and the orders they placed: CREATE TABLE customers ( id int , name text ); CREATE TABLE orders ( customer_id int ); INSERT INTO customers VALUES ( 1 , 'Ada' ), ...

Building DealMind: An AI Sales Agent That Remembers, Learns, and Adapts Sales conversations rarely happen in a single interaction. A customer might have multiple calls, emails, meetings, product demonstrations, negotiations, and follow-ups. Somewhere along the way, important information gets scattered across CRM notes, meeting summaries, documents, and the salesperson's own memory. The result? Sales representatives spend valuable time reconstructing what happened before a meeting an...

Porting a working MySQL schema to PostgreSQL is rarely a find-and-replace. The SQL standard leaves enough room that the two engines disagree on quoting, types, upserts, and pagination — and most of the disagreements fail at runtime, not at parse time. Here are the seven that cost me the most time. 1. Identifier quoting is not the same character MySQL uses backticks, PostgreSQL uses double quotes (which is the ANSI standard): SELECT `order` FROM orders ; ...

If HTML feels confusing, imagine you're building a house. You're standing on an empty piece of land. You have a vision of what you want the finished house to look like. Maybe you want beautiful colours. Comfortable furniture. Large windows. Smart lighting. Automatic doors. A modern kitchen. But there's a problem. You can't start with the decorations. You need a structure first. That simple idea can help you understand one of the most fundamental technologies o...

Building AuditTrace-IN: How We Engineered a Precedent-Governed Statutory AP Copilot with Persistent Agent Memory In Indian enterprise finance, Accounts Payable (AP) departments face a recurring operational nightmare: balancing high-volume transaction throughput with strict statutory compliance. Under Section 194Q of the Income Tax Act, buyers must deduct 0.1% TDS on purchases exceeding ₹50 Lakhs. Simultaneously, Section 43B(h) mandates that payments to registered Micro and Small Enterprises ...

Introduction Field operations often deal with recurring incidents such as equipment failures, power issues, water supply problems, and infrastructure breakdowns. While teams may have experienced similar incidents before, the knowledge gained from those incidents is often scattered across reports, logs, and individual experiences. FieldMind is an AI-powered operational-memory agent designed to solve this problem by helping organizations remember what happened, learn from previous outcomes, ...

Most web calculators are bloated data-harvesters. I built Core Metric Suite to fix this. It is a collection of 12 distinct micro-utilities hosted entirely on Vercel: AU Tax & Labour: Cents-Per-Km & SCHADS Award engines US Tax: Section 179 Vehicle Deductions & LLC Late Penalties UK Legal: Form 4A Rent Tracker & Section 8 Eviction Calculators E-Commerce & Media: Shopify Metafields Schema & Social Ad Safe Zone UI Previewers The architecture is 100% client...

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Article URL: https://www.rameznaam.com/p/ai-rsi-isnt-leading-to-super-intelligence Comments URL: https://news.ycombinator.com/item?id=49888101 Points: 1 # Comments: 0

Article URL: https://www.cnbc.com/2026/09/29/anthropic-warns-ai-existential-risks-ipo-filing-reuters.html Comments URL: https://news.ycombinator.com/item?id=49888334 Points: 3 # Comments: 2

Article URL: https://www.nber.org/papers/w35793 Comments URL: https://news.ycombinator.com/item?id=49888518 Points: 1 # Comments: 1

Article URL: https://problee.com Comments URL: https://news.ycombinator.com/item?id=49888671 Points: 2 # Comments: 1

Article URL: https://college.georgetown.edu/news-story/new-research-finds-that-misleading-ai-generated-summaries-can-distort-human-memory/ Comments URL: https://news.ycombinator.com/item?id=49888772 Points: 1 # Comments: 0

Article URL: https://github.com/MvikManners/aw1-circuit-breaker Comments URL: https://news.ycombinator.com/item?id=49888886 Points: 1 # Comments: 0

Article URL: https://github.com/JoasASantos/Offensive-Security-AI-Models Comments URL: https://news.ycombinator.com/item?id=49888937 Points: 2 # Comments: 0

Article URL: https://twitter.com/Hamzaonchain/status/2104494046362095669 Comments URL: https://news.ycombinator.com/item?id=49889017 Points: 1 # Comments: 0

Article URL: https://bombthrower.com/whats-really-behind-the-ai-panic/ Comments URL: https://news.ycombinator.com/item?id=49889031 Points: 3 # Comments: 4

Article URL: https://www.theguardian.com/commentisfree/2026/sep/29/ai-models-security-risk-agents-openai-independent-security Comments URL: https://news.ycombinator.com/item?id=49889147 Points: 1 # Comments: 0

Article URL: https://openai.com/index/towards-safety-cases-for-frontier-ai-training/ Comments URL: https://news.ycombinator.com/item?id=49889161 Points: 1 # Comments: 0

Article URL: https://www.technologyreview.com/2026/09/28/1145230/when-can-we-say-ai-made-a-scientific-discovery/ Comments URL: https://news.ycombinator.com/item?id=49889251 Points: 2 # Comments: 0

Article URL: https://www.niemanlab.org/2026/09/a-lack-of-professional-ai-guidelines-leads-to-feelings-of-ai-shame-a-new-study-finds/ Comments URL: https://news.ycombinator.com/item?id=49889292 Points: 1 # Comments: 0

Article URL: https://heyrepli.com/ Comments URL: https://news.ycombinator.com/item?id=49889393 Points: 2 # Comments: 0

With three drivers in each ear and tuning from Metropolis Studios, Nothing wants its new $399 cans to shine in the studio while also making your commute more musical.

Hi HN, I’m Per, founder of Scrimba (YC S20). We’ve spent the last decade teaching people how to code with an HTML-based video format. We’ve now plugged an LLM into it, so that people can create explainer videos about anything. It’s called “Scrimba Explain”. To demo this technology for Hacker News, we built HN.watch. It’s like HN, but with explainer videos instead of articles. We create them on-the-fly the first time someone clicks on a link. While there are obvious visual drawbacks of using HTML...

Article URL: https://twitter.com/AliAbunimah/status/2103890594137309425 Comments URL: https://news.ycombinator.com/item?id=49879645 Points: 480 # Comments: 298