Published on March 09, 2026 at 06:01 CET (UTC+1)
Agent Safehouse – macOS-native sandboxing for local agents (436 points by atombender)
Agent Safehouse is a macOS-native sandboxing tool designed to securely run AI coding agents (like Claude Code, Cursor) locally. It uses a deny-first access model enforced at the kernel level to prevent agents from writing files or executing commands outside an explicitly granted project directory. This mitigates the inherent risk of LLMs making catastrophic mistakes by ensuring operations like rm -rf ~ are blocked. It's implemented as a simple, self-contained shell script for easy adoption.
Microscopes can see video on a laserdisc (320 points by zdw)
The article is a video demonstration showing that the microscopic pits and lands on a Laserdisc, which encode analog video and audio, can be directly observed under a microscope. Using a modern digital microscope, the video reveals that one can visually "see" the frame-by-frame video information stored on the disc's surface, drawing a clear parallel between this physical optical storage and digital formats.
PCB devboard the size of a USB-C plug (100 points by zachlatta)
This GitHub project details the AngstromIO, an extremely small development board barely larger than a USB-C plug, based on the Attiny1616 MCU. It breaks out 2 GPIOs and I2C lines for space-constrained projects. The creator also designed a dual CH340 board for programming/debugging and a separate, breadboard-friendly devboard featuring a Charlieplexed LED matrix for the CH32V003 RISC-V MCU.
We should revisit literate programming in the agent era (182 points by horseradish)
This blog post argues for a revival of literate programming—intermingling code and prose to create a narrative—in the era of AI coding agents. The author notes that while tools like Jupyter and Emacs Org Mode exist, maintaining dual narratives has been a chore. They propose that AI agents could automate the tedious "tangling" (extracting code) and "weaving" (generating documentation) processes, making literate programming a more practical and powerful paradigm for human-AI collaboration.
Every single board computer I tested in 2025 (131 points by speckx)
This is a comprehensive review roundup of 15 single-board computers (SBCs) released in 2025 from manufacturers like Raspberry Pi, Qualcomm, and Rockchip. It covers a wide price range ($42 to $590) and diverse architectures (ARM, RISC-V), highlighting trends like Qualcomm's entry into the SBC market and the impact of high memory costs. The author benchmarks all boards, with full data available on sbc.compare for detailed performance comparisons.
Ask HN: What Are You Working On? (March 2026) (78 points by david927)
This is a Hacker News "Ask HN" thread where users share their current projects. It functions as a snapshot of the community's activities, featuring a wide array of endeavors including a web-based notepad, a legal reasoning agent for law firms, a city-builder video game, and various other software tools, startups, and personal experiments, showcasing the diverse interests of technical builders.
FrameBook (385 points by todsacerdoti)
FrameBook is a personal project blog detailing the process of retrofitting a first-generation (2006) black polycarbonate MacBook with modern internal components. The author describes sourcing old, non-functional MacBooks, completely disassembling them, and designing a new internal chassis to house a contemporary mini-PC motherboard and display controller, ultimately creating a modern laptop inside a classic "black MacBook" shell.
Linux Internals: How /proc/self/mem writes to unwritable memory (2021) (49 points by medbar)
This technical deep-dive explains an obscure Linux kernel behavior: writing to /proc/self/mem can bypass virtual memory permissions (e.g., write to read-only memory). The article explores how this "punch-through" semantic works, showing that the kernel operates outside hardware-enforced user-space memory protections. It details the use case for tools like the Julia JIT compiler and discusses the relationship between OS privilege and CPU constraints.
My Homelab Setup (180 points by photon_collider)
The author details their homelab setup, created by repurposing an old gaming PC into a home server running TrueNAS Scale. The primary goal was to establish a robust storage and backup solution for personal data like photos. The server also hosts several self-hosted applications including Immich (photo backup), Ollama (for running local LLMs), Mealie (recipe manager), and tools for monitoring hard drive health.
The Death of Social Media Is the Renaissance of RSS (14 points by jruohonen)
This article posits that the proliferation of AI-generated content is leading to the decline of traditional social media platforms, which are becoming flooded with homogenized, low-quality material. It argues that this creates an opportunity for a renaissance of RSS (Really Simple Syndication), as users seek to reclaim control over their information diet by explicitly subscribing to authentic, human-curated sources via a simple, open, and algorithm-free protocol.
Implications: We'll see a new category of security/safety tooling emerge for local AI. Trust in agentic AI will depend not just on model reasoning but on the guaranteed safety of its execution environment. Developers must design agents with a principle of least privilege from the start.
Trend: AI is Reshaping Software Development Practices & Paradigms
Implications: Development tools and practices will evolve to be more "AI-native." The source of truth for a project may shift from pure code files to rich, narrative documents that both humans and AIs can understand and from which executable code is derived.
Trend: The AI Data Center Boom is Creating Hardware Ripples Everywhere
Implications: Cost and availability for computational resources, from cloud GPUs to consumer DRAM, will remain volatile. This incentivizes efficiency (smaller models, better quantization) and could drive innovation in alternative, cost-effective hardware stacks for development and edge deployment.
Trend: The Problem of AI-Generated Content is Driving a Return to Curation & Protocol
Implications: There's a growing market for tools and platforms that verify, filter, and curate content, emphasizing human provenance. Decentralized, open protocols (like RSS) that give users control will gain traction as antidotes to opaque, engagement-optimized algorithms saturated with synthetic content.
Trend: Democratization of AI through Accessible Hardware & Local Deployment
Implications: Model optimization (for smaller, faster inference) will be as crucial as breakthrough capabilities. The ecosystem for local AI deployment—easy-to-use software, compatible hardware, and knowledge sharing—will expand rapidly, empowering individual developers and small teams.
Trend: Hybrid Human-AI Collaboration is the Near-Term Future
Analysis generated by deepseek-reasoner