Tech News

The foundations of a provably secure operating system (PSOS) (1979) [pdf]

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Where Are the Vibecoded Photoshops?

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Earth's Radio Bubble: Every signal we've ever sent into space

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Why is Google Maps back to showing old satellite images of Altadena?

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The Mercury logic programming system

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Nobody understands the point of hybrid cars [video]

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The two oldest printing presses

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It is time to give up the dualism introduced by the debate on consciousness

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How fast is N tokens per second really?

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Timers in React Without setTimeout: useTimeout, useInterval, useCountDown, and useRafFn

Timers in React Without setTimeout: useTimeout, useInterval, useCountDown, and useRafFn Timers are one of those things every React developer writes by hand the first ten times and gets wron

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Host & Network Penetration Testing: Exploitation CTF Walkthrough

Introduction After recently transitioning into my first cybersecurity role, I'm continuing my practical skills development through hands-on labs. This writeup documents my approach to compl

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Bidet AI — on-device Gemma 4 turns a messy brain-dump into clean writing

This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built I'm Mark. I'm a middle-school teacher, and I'm not a coder. A few times a year there's a piece of writing th

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The Death of "Just Write the Code": How AI-Native Development Is Reshaping What It Means to Be a Developer

You're not losing your job to AI. But the developer who knows how to work with AI might. I used to spend 40 minutes writing a database migration script. Last Tuesday, I described what I needed in

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I still don't want to give Claude SSH access, so I built a doctor for my homelab

A few weeks ago I wrote about why I don't want to give Claude SSH access to my home server. It's not that AI agents are useless. It's the opposite. They got good enough that handing one a shell start

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GemmaChallenge: Build a Socratic Study Buddy with Gemma 4

This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built I built a local Socratic Study Buddy application. It pairs the localized inference engine of LM Studio with

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AI fixed how fast I can build. It broke how I know what I'm building.

A markdown convention I wrote to track 5-10 half-built projects without losing my mind, and without another SaaS subscription. TL;DR. AI made it cheap to generate ideas, draft plans, and start proje

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my apps were invisible to AI agents — here's what I am doing about it

i'm an indie app builder and vibe coder. i've shipped over 30 small business apps — invoicing, inventory, packing slips, tax tracking. and now apparently an open standard for ai agents. that last one

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Debugging DNS leaks: why your VPN isn't hiding what you think it is

Last month I was setting up a hardened dev environment for a client doing security research. They wanted all traffic from their workstation tunneled through a VPN, no exceptions. Simple, right? Instal

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Build a Socratic Study Buddy with Gemma 4: A Beginner’s Guide to Running AI Locally

The landscape of AI has shifted from "bigger is better" to "smarter is better." We are entering the era of intelligence-per-parameter—a metric of how much reasoning power is packed into a compact mode

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Engineering RAG Systems That Actually Work: Conversational Retrieval, Page Awareness & Debugging (Part 5)

From a working prototype to something that actually behaves like a real system. Introduction In the previous parts, we built a fairly solid RAG pipeline: Vector search using FAISS

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