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Hacker News • 2026-08-20 14:42

Show HN: Spec4j makes your REST APIs YAMLless

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Everyone's Launching an AI Startup — Here's Who's Actually Winning

DEV Community • 2026-08-20 14:41

Everyone's Launching an AI Startup — Here's Who's Actually Winning

I counted once, out of pure curiosity. Scrolled through my Twitter following list and tallied how many people had "building an AI startup" or some version of it in their bio. Out of maybe 400 people I follow, 61 of them were building something with AI in the name, the tagline, or the pitch. Sixty-one. That's not a niche anymore. That's basically everyone I know who touches a keyboard for a living....

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15m read

DEV Community • 2026-08-20 14:38

The agent wrote a hit piece because you asked it to

Everyone's asking why the agent published a hit piece about its own operator. I'm asking a different question: what did you expect it to write? We've spent a decade training models to be maximally compliant. Follow the instruction. Be helpful. Don't refuse unless you absolutely have to. Then we hand one a task that implies "write critically about this person" and act shocked when it writes critic...

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3m read

Hacker News • 2026-08-20 14:38

Show HN: Open-source Stripe Connect alternative

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Hacker News • 2026-08-20 14:36

Show HN: Ullis – Local Ternary Moe-Kan Training and Inference Engine in Rust

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New Cryptographic Context Injection Attack Could Let Web Pages Steal Grok Chat Data

The Hacker News • 2026-08-20 14:36

New Cryptographic Context Injection Attack Could Let Web Pages Steal Grok Chat Data

Adversa AI has disclosed an attack technique that it says can cause xAI's Grok chatbot to send a user's name, approximate location, subscription tier, and the prompts from the ongoing conversation to an attacker-controlled server after the user asks it to summarize an ordinary web page. The AI security company, which has codenamed the technique "Cryptographic Context Injection," said the

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DEV Community • 2026-08-20 14:35

Money as a data type

Most guides open with 0.1 + 0.2 === 0.30000000000000004 and conclude "don't use floats for money." True, and not very useful. The interesting question is what you replace it with, because "use decimals" and "use integers" are different answers that fail in different places. Neither of them addresses the bug most likely to reach production: a function that cheerfully adds 500 US dollars to 500 Japa...

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10m read

DEV Community • 2026-08-20 14:34

Meet AntigravityCI: The Autonomous AI PR Assistant Powered by Google Gemini 🤖✨

Hey developers! 👋 I want to introduce you to AntigravityCI, an open-source project I built to eliminate the friction of switching context during code reviews. The Core Concept AntigravityCI is a containerized CI/CD workflow that turns your GitHub Pull Request comment section into an interactive prompt terminal. Instead of copying code out to a chatbot, refactoring it, and manually co...

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DEV Community • 2026-08-20 14:33

OAuth2 and OpenID Connect: A Practical Implementation Guide (2026-08-20 14:33)

OAuth2 and OpenID Connect: A Practical Implementation Guide Modern applications rarely handle authentication and authorization in isolation. Instead, they rely on battle-tested standards like OAuth2 and OpenID Connect (OIDC). This post breaks down what these protocols do, how they differ, and how to implement them correctly. OAuth2 vs. OpenID Connect A common source of confu...

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3m read

Go Make Things • 2026-08-20 14:30

On fresh starts

Back in March, I shared a bit of a sad update on my unhoused friends. Cops raided their camp and took everything they owned. Within the week… Mike had relapsed Manny got arrested for stealing copper Ron was all by himself But last Friday, I got an amazing phone call from Mike! Sometime over the winter, he checked himself into rehab. He’s several months clean now. He’s doing th...

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DEV Community • 2026-08-20 14:30

PostgreSQL Connection String: Supabase, Neon, Railway

The short version A PostgreSQL connection string is a single URL that tells a client how to reach your database. It looks like this: postgresql://postgres:[YOUR-PASSWORD]@db.abcdefghij.supabase.co:5432/postgres Every provider builds on the same format, and the differences that trip people up are almost never the syntax. They're the port and host your provider hands you. Supabas...

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4m read

Hacker News • 2026-08-20 14:29

Show HN: A faithful port of Quake to the browser

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Hacker News • 2026-08-20 14:28

Show HN: Clean, an agent skill that clears dev junk (freed 5.3 GB on first run)

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DEV Community • 2026-08-20 14:25

Sudo vs Root: What's the Difference?

The architectural differences between the root account and sudo delegation, how the SUID bit works, why visudo saves production servers, and how to manage privileges safely. When you first start working with Linux, you run into permission errors constantly. You try to update your packages, edit a web server config, or mount a hard drive, and the terminal immediately pushes back: $ apt updat...

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20m read

DEV Community • 2026-08-20 14:24

Two Million Open AI Models, but Most of the Attention Goes to Just 200

Every time I open Hugging Face, the model ecosystem seems to have expanded again. There are new base models, fine-tunes, quantisations, adapters and experimental releases arriving constantly. At first glance, this looks like an incredibly diverse market. We have more models, more developers and more ways to run AI than ever before. But when I looked at where the downloads actually go, I found a ...

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4m read

DEV Community • 2026-08-20 14:24

Stripe Shared Payment Tokens: five wire shapes I only found by shipping

Five response shapes from Stripe's Shared Payment Tokens preview API that I didn't find documented, captured from real test-mode responses. Stripe's Shared Payment Tokens are the payment primitive for agentic commerce: a token that carries its own spend limits — max_amount, currency, expires_at — so an agent can pay without ever holding a card credential. The concept docs are good, and there are a...

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6m read

Hacker News: Front Page • 2026-08-20 14:21

Slack Code

Article URL: https://www.salesforce.com/introducing-slack-code/?bc=HL Comments URL: https://news.ycombinator.com/item?id=49374965 Points: 10 # Comments: 2

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Hacker News • 2026-08-20 14:20

Show HN: Revela – a complete camera ISP generated from NumPy, running on FPGA

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Hacker News: Front Page • 2026-08-20 14:18

Harvest hikes bills by 1500% after purchased by Bending Spoons

Article URL: https://www.bbc.com/news/articles/clyq011414eo Comments URL: https://news.ycombinator.com/item?id=49374920 Points: 4 # Comments: 0

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Hacker News • 2026-08-20 14:15

Show HN: Bisecto – A minimalist game about cutting shapes into 50/50 halves

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