Tell HN: Anthropic no longer allowing Claude Code subscriptions to use OpenClaw

Anthropic is changing its policy for third-party harnesses, requiring extra usage and a pay-as-you-go option starting April 4. A one-time credit and discounts for pre-purchased extra usage are being offered to ease the transition.

Artemis II crew take “spectacular” image of Earth

https://ichef.bbci.co.uk/news/480/cpsprodpb/99c2/live/d50d99f0-2f7a-11f1-b297-95b0a0a8331e.jpg.webp
Nasa's Artemis II crew took high-resolution images of the Earth as they headed to the Moon. The images show the Atlantic Ocean, atmosphere, and auroras, with the Earth appearing upside down.

iNaturalist

https://static.inaturalist.org/wiki_page_attachments/3154-medium.png
iNaturalist is a social network for naturalists! Record your observations of plants and animals, share them with friends and researchers, and learn about the natural world.

Show HN: TinyOS – A minimalist RTOS for Cortex-M written in C

https://opengraph.githubassets.com/9647b40edbed7efbdb7effae5d8a85d258851a22701d037ad2eec3ddb28717e7/cmc-labo/tinyos-rtos
This is a summary of the provided text in 2 concise English sentences, not exceeding 200 characters.

Herbie: Automatically improve imprecise floating point formulas

https://herbie.uwplse.org/logo-car.png
Herbie is a tool that improves the accuracy of floating-point expressions. It helps find and fix inaccuracies in code.

What changes when you turn a Linux box into a router

We can turn a Linux system into a router or switch by making 7 changes to the system, including enabling packet forwarding, defining a bridge, and configuring netfilter rules to filter traffic. These changes allow us to create a complete forwarding system, including enabling IP forwarding, defining a bridge, configuring netfilter rules, deploying a DHCP and DNS server, and vending WiFi ...

Fake Fans

https://substackcdn.com/image/fetch/$s_!yOGu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb1d34460-fe78-42fd-9b08-ca235e413f2b_620x422.webp
Chaotic Good is a digital marketing agency that creates virality for musicians by manufacturing fake fan accounts and controlling online discourse. Their tactics aim to shift the burden of promoting artists from the artists themselves to the agency.

Show HN: I built a frontpage for personal blogs

https://text.blogosphere.app/og.png
The frontpage of the indie web. Discover the latest posts from independent blogs across the web.

The FAA’s flight restriction for drones is an attempt to criminalize filming ICE

https://www.eff.org/files/banner_library/drone-banner_0.png
The Trump administration issued a nationwide flight restriction preventing drones from flying near ICE or CBP vehicles, violating the First Amendment right to record law enforcement. The FAA has yet to respond to a letter demanding the restriction be lifted, which could last 21 months and impose severe penalties on violators.

The house is a work of art: Frank Lloyd Wright

We're verifying your browser Website owner? Click here to fix

OpenClaw privilege escalation vulnerability

OpenClaw before 2026.3.28 has a privilege escalation vulnerability in the /pair approve command path. A caller with pairing privileges can exploit this to approve device requests with broader scopes, including admin access.

We replaced RAG with a virtual filesystem for our AI documentation assistant

https://www.mintlify.com/_next/image?url=%2Fimages%2Ffeatured%2Fhow-we-built-a-virtual-filesystem-for-our-assistant.png&w=1920&q=75
The team created a virtual filesystem called ChromaFs to power their documentation assistant, allowing it to explore documentation like a codebase without the need for real sandboxes. ChromaFs uses a Chroma database to provide instant session creation, zero marginal compute cost, and built-in role-based access control, replacing the need for expensive sandboxes.

How to Write Unmaintainable Code (1999)

The author provides humorous and satirical advice on how to write code that is intentionally difficult to maintain, making it hard for others to understand and modify. The tips include using confusing variable names, inconsistent coding styles, and avoiding documentation, all with the goal of creating a codebase that is a nightmare to work with.

Go on Embedded Systems and WebAssembly

https://tinygo.org/images/tinygo-logo.png
TinyGo brings Go to embedded systems and the web with a new LLVM-based compiler. It supports over 100 microcontrollers and produces WebAssembly code for web and edge computing.

Run Linux containers on Android, no root required

https://opengraph.githubassets.com/bc8e9406d8e1959746af2a1397eb9ea378ce486aa05af258b42ff679780080a4/ExTV/Podroid
Podroid spins up a lightweight Alpine Linux VM on your phone using QEMU with a serial terminal and Podman container runtime. It allows running containers and persisting packages across reboots.

Charge Robotics (YC S21) Is Hiring Software and Hardware Engineers

https://app.ashbyhq.com/api/images/org-theme-logo/245e1357-fdad-4538-b768-fbc50d9a625b/e90ad744-2cfa-4bef-bbf2-c8f00d147795/d108bc03-6e25-40ec-85b4-5ccda2c6d3ec.png
Charge Robotics Jobs

How to make a sliding, self-locking, and predator-proof chicken coop door (2020)

https://www.backyardchickens.com/data/attachments/2229/2229106-c3dac488f4013d120f4c6c7b5e8c1a3e.jpg?hash=w9rEiPQBPR
A secure coop door design uses a vertical sliding door with a self-locking mechanism, eliminating the need for external locking. The door is designed to be easy to build using a jigsaw, drill, and table saw, with a counterweight or spring hinge for smooth operation.

Oracle Files H-1B Visa Petitions Amid Mass Layoffs

https://nationaltoday.com/wp-content/uploads/not-wordpress/2026/04/69cff13a331fe.jpg
Oracle filed 3,126 H-1B visa requests despite laying off thousands of American workers. The company's actions raise concerns about replacing US workers with cheaper foreign labor through the H-1B program.

The Technocracy Movement of the 1930s

https://substackcdn.com/image/fetch/$s_!52cJ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffddbf0d5-bc21-419e-a33d-34bec558ce04_1798x844.heic
The technocracy movement, founded in 2021, aimed to replace democracy with a system led by engineers and technicians, but it failed and is now largely forgotten. However, its ideas have unconsciously influenced the 21st century tech elite, who pursue a similar philosophy through more covert means.

Bourbon waste could provide next-gen supercapacitor components

https://spectrum.ieee.org/media-library/an-adult-man-in-safety-goggles-and-gloves-holding-up-a-beaker-filled-with-opaque-bourbon-waste.jpg?id=65400140&width=1200&height=900
Researchers in Kentucky have found a way to convert bourbon waste into high-performance energy-storage materials. This could help distilleries turn a waste stream into a source of profit and meet the growing demand for energy storage.

Windows++: C++ Application Framework for Windows by Paul DiLascia

http://pauldilascia.com/images/wpp.jpg
Rolling your own application framework may seem crazy, but with the advent of the web and the need for self-contained applets with a tiny footprint, it makes more sense. MFC has got too huge and unwieldy; moreover, you can't easily change it when it doesn't do what you want. On the other hand, writing a framework from scratch is a lot of work. Windows++ is a lightweight C++ ...

F-15E jet shot down over Iran

https://i.guim.co.uk/img/media/b3a968d7b868ec4522eec1f7cf3b8635d03c06a8/0_126_901_721/master/901.jpg?width=445&dpr=1&s=none&crop=none
A US F-15E Strike Eagle fighter was shot down over Iran, prompting a US search and rescue effort for its two crew members. One crew member was reportedly rescued in a high-risk operation, with the fate of the second crew member still unclear.

Why are we still using Markdown?

You're frustrated with Markdown's complexity and inconsistencies, particularly with inline HTML and multiple ways to write the same thing. You think a minimal, well-defined markup language with a build system and compile-time hooks could solve many problems.

Iran strikes leave Amazon availability zones "hard down" in Bahrain and Dubai

https://substackcdn.com/image/fetch/$s_!6X95!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F29bf6a18-10a1-409f-90c7-937af2bea02d_2706x1644.png
Amazon's AWS availability zones in Dubai and Bahrain are down due to Iranian strikes and will be unavailable for an extended period. Amazon is advising employees to deprioritize the regions and is helping customers migrate to other locations.

Build your own Dial-up ISP with a Raspberry Pi

https://www.jeffgeerling.com/blog/2026/build-your-own-dial-up-isp-with-a-raspberry-pi/pi-isp-ibook-hero.jpeg
The user set up a local dial-up ISP using a Raspberry Pi and an old modem to emulate a dial-up connection on an iBook G3 from 1999. They used a phone line simulator and a USB modem to establish a connection and browsed the internet using Macproxy Classic.

Age verification on Systemd and Flatpak

Apple is rolling out age verification for UK iPhone and iPad users to access certain services, despite UK law not compelling operating systems to do so. This move may be a test bed for future compliance in California by 2027, with potential implications for other operating systems.

Async Python Is Secretly Deterministic

https://cdn.prod.website-files.com/672411cbf038560468c9e68f/69ccad5e3c7a9d4e05cffa0a_cac94705.png
To make async Python workflows deterministic, we need to understand the event loop's single-threaded execution model and how tasks are scheduled in FIFO order. By incrementing step IDs before the first await in each step, we can deterministically order steps and ensure consistent execution order during recovery.

SSH certificates: the better SSH experience

SSH certificates provide a better and more seamless SSH experience by eliminating the need for Trust on First Use (TOFU) and allowing for short-lived keys, forced-commands, and automated key management. An SSH CA can be used to sign host keys and user keys, making it easier to manage SSH connections and eliminating the need for manual key deployment and TOFU.

DCJ11Hack+ – DEC PDP/11 based homebrew computer

https://codeberg.org/TechPaula/DCJ11HackPlus/media/branch/main/images/DCJ11_CPU.png?raw=true
You're sharing a DCJ11 based board with a backplane for adding/removing functionality. It includes a main CPU board, RAM, ROM, and text display board with schematics and PCB files available.

Show HN: Mtproto.zig – High-performance Telegram proxy with DPI evasion

https://opengraph.githubassets.com/f863b85e549c76022b1f72cd21108d2999ee98499b1484a5ec9a9f187a55219c/sleep3r/mtproto.zig
Rejects replayed handshakes outside ±2 min window AND detects ТСПУ Revisor active probes Engineering Notes: For deep technical details, cryptography internals, systemd hardening, and benchmarks, see GEMINI.md (Engineering Notes). # Clone git clone https://github.com/sleep3r/mtproto.zig.git cd mtproto.zig # Build (debug) make build # Build (optimized for production) make release # Run with ...