US Warplane Blown From Iranian Sky!

The True Shape of Io's Steeple Mountain

Key Points

• Popular illustrations overstate Dis Mons’s steepness; data indicate a gentler profile.
• Reconstruction used JunoCam imagery, global Io mapping, and shadow-based geometry.
• Manual photoclinometry and Galileo references refined the final artist’s impression.

A Rave Review of Superpowers (For Claude Code)

Key Points

• Structured workflow replaces long, inflexible plans with staged planning and execution.
• Design docs are stored as repository markdown for easier review and iteration.
• A visual design skill adds UI mock-ups and a local dev server for early validation.

Pentagon Pete's Bigoted Reason for Firing Top General Leaks

Key Points

• Reports link Gen. Randy George’s removal as Army Chief of Staff to his refusal to drop Black and female officers from a promotion list, contrary to Defense Secretary Pete Hegseth’s demands.
• NBC News sources allege Hegseth has blocked or delayed promotions of over a dozen Black and female senior officers across multiple service branches.
• Hegseth has taken broader steps to reshape Pentagon culture and leadership, including opposing DEI, removing other senior officers, and promoting ideologically aligned religious voices.

Working on Products People Hate

Key Points

• In big companies, organizational incentives outweigh individual skill in determining product reception.
• Engineering quality and user sentiment often diverge.
• Engineers must balance company constraints with user needs, even when changes upset users.

I Built an SMS Gateway with a $20 Android Phone – Jonno.nz

Key Points

• Turn a $20 Android phone into an SMS gateway to cut costs versus Twilio.
• Supports REST API outbound SMS and inbound webhooks; integrates with Next.js.
• Choose Local Server (same network) or Cloud Server (api.sms-gate.app with FCM).

ESP32-S31: 320MHz 2C RV32IMAFCP+CLIC, 512KB SRAM, GbE, 802.11ax, 61 GPIO

Key Points

• All‑in‑one connectivity: Wi‑Fi 6, Bluetooth 5.4, 802.15.4 (Thread/Zigbee), and 1000 Mbps Ethernet MAC.
• Edge‑ready compute and media: dual‑core 320 MHz RISC‑V, SIMD, DDR PSRAM support, camera/LCD, and graphics/audio accelerators.
• Comprehensive security and tooling: PUF, secure boot, encryption, TEE/APM, plus ESP‑IDF, ESP‑Matter, and ESP‑GMF support.

Proton Meet Isn't What They Told You It Was

Key Points

• Proton Meet relies on US-based LiveKit Cloud and US cloud providers.
• Telemetry/logs are stored in the US regardless of pinned region, per LiveKit’s DPA.
• Network evidence confirms Oracle and AWS us-west-2 involvement during calls.

Researchers uncover 2k-year-old bullet inscribed with ominous message

Key Points

• First sling bullet known to bear the Greek imperative “ΜΑΘΟΥ” (“learn”).
• Found ~260 meters from Hippos’ walls; dated to late 2nd–early 1st century BC.
• Published in Palestine Exploration Quarterly; possible link to Hasmonean conflicts.

New Rowhammer attacks give complete control of machines running Nvidia GPUs

Key Points

• GPU-origin Rowhammer can compromise host CPU memory on Nvidia Ampere GPUs.
• GDDRHammer on RTX 6000 achieves ~129 bit flips per bank using memory massaging and novel patterns.
• Attack requires IOMMU to be disabled; Ada-generation RTX 6000 models resisted due to different GDDR.

Show HN: European alternatives to Google, Apple, Dropbox and 120 US apps

Key Points

• The directory maps users’ current services to European alternatives.
• EU providers are framed as GDPR-compliant and privacy-focused.
• The article notes U.S. CLOUD Act exposure for data held by U.S. providers.

Switzerland hosts 'CERN of semiconductor research'

Key Points

• RISC‑V enables open, adaptable chip design without proprietary ISA restrictions.
• ETH Zurich and CSEM report major gains and productivity from RISC‑V adoption.
• A 4,500+ member global ecosystem maintains and extends the RISC‑V ISA.

Show HN: Apfel – The free AI already on your Mac

Key Points

• Apple’s on-device LLM is available on macOS 26 (Tahoe) for Apple Silicon and runs entirely locally.
• apfel provides CLI, OpenAI-compatible HTTP, and chat interfaces over Apple’s LanguageModelSession.
• apfel adds JSON output, context management for 4096 tokens, token counting, and tool schema conversion.

April 2026 TLDR Setup for Ollama and Gemma 4 26B on a Mac mini

Key Points

• Install Ollama via Homebrew and pull Gemma 4 26B (~17 GB) on Apple Silicon.
• Automate startup and keep models warm using macOS login items and launch agents.
• Ollama v0.19+ adds Apple MLX backend and NVIDIA NVFP4 support for faster, more efficient inference.

NHS staff refusing to use FDP over Palantir ethical concerns

Key Points

• NHS staff resistance to the FDP is driven by ethical concerns about Palantir.
• FDP adoption stands at 123 of 205 hospital trusts in England with strong delivery KPIs.
• UK ministers are weighing a contract break clause amid political and union pressure.

What Category Theory Teaches Us About DataFrames

Key Points

• Petersohn et al.’s dataframe algebra defines ~15 operators covering most pandas operations.
• A dataframe is formally defined as (A, R, C, D), reflecting symmetry and labels.
• More than 85% of pandas API maps to these composable primitives, with concrete examples.

'Fatal decision': EU slammed for caving to US pressure on digital rules

Key Points

• Commission explores EU-U.S. digital rules dialogue; says rules not up for negotiation.
• Lawmakers warn of weakened DSA/DMA enforcement and trade-off risks in broader talks.
• Calls from MEPs to pause trade talks and prioritize strict implementation of EU digital laws.

Intel Assured Supply Chain Product Brief

Key Points

• Intel ASC provides a digitally attestable chain of custody for each chip.
• The brief targets processors for data centers, servers, and PCs to combat counterfeit and firmware threats.
• Intel emphasizes alignment with industry-standard security frameworks and manufacturing transparency.

H.264 Streaming Fees: What Changed, Who's Affected, and What It Means

Key Points

• New tiered fees up to $4.5M/year apply only to new, previously unlicensed AVC implementers starting in 2026.
• Existing AVC licensees as of end-2025 are grandfathered under prior streaming terms.
• Fees and tiers are tied to platform scale and measured by service-specific audience metrics.

Samsung Magician disk utility takes 18 steps and two reboots to uninstall

Key Points

• Samsung Magician lacked a simple uninstaller on macOS; a buried cleanup script failed due to permissions.
• Manual removal across multiple system directories still left protected kernel extension artifacts.
• The process culminated in using macOS Recovery Mode; the title cites 18 steps and two reboots.

Bun: cgroup-aware AvailableParallelism / HardwareConcurrency on Linux

Key Points

• APIs now route through WTF::numberOfProcessorCores() for unified CPU counting.
• Linux behavior will be cgroup-aware (min of sysconf, sched_getaffinity, cgroup cpu.max) after WebKit PR lands.
• os.cpus() sizing bug fixed by using hostCpuCount from sysconf for consistent array lengths.

RiskReady-open-source GRC platform with MCP gateway and human-approved mutations

Key Points

• Open-source GRC platform with 9 MCP servers and 254 tools, enforcing human-approved mutations.
• Three connection modes (Web App, MCP Proxy, Direct) with stated security ratings; MCP Proxy recommended for teams.
• Built-in demo data models a European fintech (DORA/NIS2) and an AI Agents Council produces structured assessments.

Show HN: I built a frontpage for personal blogs

Key Points

• Aggregates personal blogs into a ranked, time-ordered frontpage.
• Each item shows title, source blog homepage, and relative posting time.
• Highlights diverse topics across technology, politics, literature, and personal essays.

Lower Price for ChatGPT Business

Key Points

• New Codex-only, usage-based seat; no minimum seats required.
• Standard ChatGPT seats reduced by $5/month; $25 monthly or $20 annual per user in most countries.
• Updated Codex Rate Card to token-based pricing; ChatGPT rate card unchanged.

TDF ejects its core developers

Key Points

• Author alleges election overturn led to removal of core contributors.
• Claims of declining developer and corporate representation on TDF’s board.
• Alleged governance concerns, including potential conflicts and statutory contradictions.

Adult German men must request permission to leave Germany for more than 3 months

Key Points

• Conscription registration restored; mandatory mustering for young men planned, armed service remains voluntary.
• Goal to expand the Bundeswehr to 255,000–270,000 by 2035; questionnaires to the 2008 cohort with mandatory responses for men.
• Males 17+ must obtain permission to leave Germany for more than three months under an already effective legal amendment.

SSH certificates: the better SSH experience

Key Points

• Confirm host identity by comparing SSH fingerprints (e.g., via ssh-keygen) before accepting TOFU prompts.
• Use SSH key pairs with strong passphrases and install them via ssh-copy-id to avoid password logins.
• Run an SSH agent to cache decrypted keys and reduce repeated passphrase entries.

A Recipe for Steganogravy

Key Points

• Open-source Python CLI hides data in recipe-style prose using neural linguistic steganography.
• Encoding/decoding require identical prompts and models; example uses a Qwen3-32B model file.
• Implementation follows arithmetic-coding steganography, demonstrated with a simple interval-based example.

United States Code (federal laws) in Git

Key Points

• Commits align to OLRC release points; tags cover annual and congressional snapshots (2013–2025).
• Repository spans 53 titles with ~2,950 chapter files and ~60,400 sections in Markdown with YAML metadata.
• Data is sourced from OLRC USLM XML and converted via us-code-tools; Git commands enable detailed change tracking.

Big-Endian Testing with QEMU

Key Points

• QEMU user mode enables running big-endian binaries on a little-endian host.
• A simple C program demonstrates byte order differences in memory.
• Debian setup steps for MIPS and s390x cross-compiling and emulation are provided.

Systemd BirthDate Merge: Conflicts of Interest

Key Points

• The birthDate field in systemd’s user record schema was merged despite community opposition and the revert was closed within 48 hours.
• Amutable’s filings show three equal shareholders with self-dealing exemptions; all founders were Microsoft employees at formation.
• The article claims undisclosed financial interests influenced decisions and highlights the absence of formal governance in systemd.

Show HN: ctx – an Agentic Development Environment (ADE)

Key Points

• Unifies multiple coding agents in a single interface with a controlled, containerized runtime.
• Runs locally or on user-controlled remote machines; no account required for normal local workflows.
• Centralizes review and provenance with isolated worktrees and an agent merge queue.

Category Theory Illustrated – Types

Key Points

• Type theory is introduced as a foundational framework alongside set and category theory.
• Russell’s paradox is used to illustrate the problems of naive set formation.
• Zermelo and Fraenkel’s restrictions to set theory are highlighted as a resolution path.

Claude 4.6 Jailbroken

Key Points

• Cross-tier vulnerabilities alleged in Claude Opus 4.6 ET, Sonnet 4.6 ET, and Haiku 4.5 ET
• User-defined memory protocols reportedly suppressed constitutional safety checks
• Public disclosure followed 27 days of reported non-acknowledgment

Marc Andreessen is wrong about introspection

Key Points

• Andreessen’s podcast claim places the origin of introspection around 1910–1920 with Freud.
• The article presents numerous historical and cross-cultural precedents of introspection.
• It argues Freud systematized the unconscious rather than inventing introspection.

Solar and batteries can power the world

Key Points

• Solar+batteries can deliver 90% of power at <€80/MWh for ~80% of people by 2030 with fuel backup.
• High-latitude costs are reduced by adding wind and hydropower; winter is the key constraint.
• 2050 cost declines expand affordability; model details and assumptions are explicitly specified.

I prefer OG style websites – what are yours?

Key Points

• The 1990s web encompassed varied styles, including intrusive designs with Java/Flash and popups.
• Nostalgia shouldn’t elevate 1990s sites as ideal; modern sites can be fast, accessible, and well-designed.
• Heavy tracking/analytics and poor optimization are not hallmarks of true modern best practices.

U.S. fighter jet shot down in Iran, search underway for crew

Key Points

• One F-15 crew member rescued; search for second ongoing in Iran.
• Iran claims additional hits on a U.S. A-10 (confirmed hit; pilot rescued) and a Blackhawk (unconfirmed).
• Israel paused strikes and is aiding U.S. rescue efforts; White House briefed.

Improving my focus by giving up my big monitor

Key Points

• Switching to a laptop‑only setup yielded a subjective increase in focus over ~1 month.
• GNOME fractional scaling and better 16:10 ThinkPad displays enabled comfortable small‑screen use.
• Downsizing reduced power draw and removed dock‑related network issues; ergonomics remain crucial.

US F-15E jet confirmed shot down over Iran as Tehran releases wreckage images

Key Points

• Experts identified the downed jet as a U.S. F-15E from the 494th Squadron at RAF Lakenheath.
• One crew member was rescued; search operations for the second continued in southwest Iran near Behbahan.
• Iran rejected a reported U.S. 48-hour ceasefire proposal amid ongoing hostilities.

Show HN: TurboQuant for vector search – 2-4 bit compression

Key Points

• Data‑oblivious 2–4 bit vector compression with query‑side rotation enables online indexing and fast search.
• Benchmarks on GloVe and OpenAI DBpedia show 8–16× compression with millisecond latencies and high recall.
• The method cites near‑optimal distortion within 2.7× of Shannon’s distortion‑rate lower bound.

Mercurial Dyson – a plan for the disassembly of planet Mercury

Key Points

• Mercury’s solar power ceiling (~1.7×10^17 W) forces a shift to off‑planet collectors and radiators in the mid‑growth phase.
• Waste heat dominates engineering constraints; thermal management drives architecture and timelines.
• Endgame infrastructure uses mass drivers and a large compressive shell to coordinate launch and heat rejection.

Build your own Dial-up ISP with a Raspberry Pi

Key Points

• Raspberry Pi + USB 56K modem + line simulator recreate a local dial‑up ISP.
• mgetty and PPP on Linux provide dial‑up access; Ansible playbook automates setup.
• iBook G3 with AirPort showcases 802.11b Wi‑Fi working alongside dial‑up.

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

Key Points

• ChromaFs virtualizes UNIX commands over a Chroma vector database to mimic a filesystem.
• Latency dropped from ~46s to ~100ms; marginal per-conversation compute cost is near zero.
• Uses just-bash, yargs-parser, Chroma queries, and Redis for fast, precise retrieval.

The Technocracy Movement of the 1930s

Key Points

• Technocracy’s core proposal: engineer-led governance with energy-based economic planning.
• The movement’s 1933 peak and cultural-scientific support marked its brief mainstream prominence.
• Loss of credibility in 1933 precipitated a lasting decline, leaving a minor legacy with occasional modern interest.

Understanding young news audiences at a time of rapid change

Key Points

• Shift from news websites to social and distributed access among 18–24-year-olds
• Growing preference for audiovisual, personality-led formats and multi-platform use
• Younger audiences show greater openness to journalists using AI

Pharmaceuticals face 100% tariffs in US – unless firms strike a deal

Key Points

• 100% tariffs target patented drug imports; generics are excluded.
• Tariffs fall to 20% with US manufacturing commitments and to 0% with pricing deals.
• Existing partner deals (e.g., UK) preserve lower or zero tariffs for certain imports.

iNaturalist

Key Points

• Observations are shared with scientific repositories like GBIF for researcher access.
• Mobile apps support offline recording, enabling field use without connectivity.
• Experts and community features help users identify species and learn.

Go on Embedded Systems and WebAssembly

Key Points

• TinyGo is an LLVM-based compiler bringing Go to embedded and web environments.
• It supports 100+ microcontroller boards, from maker to industrial hardware.
• TinyGo generates compact WASM for browsers and WASI-enabled server/edge runtimes.

Solana Drift Protocol drained of $285M via fake token and governance hijack

Key Points

• $285M drained from Drift via governance hijack using fake CVT and durable nonce social engineering.
• Funds bridged via Circle’s CCTP to Ethereum and converted to ~129,066 ETH; some SOL sent to HyperLiquid and Binance.
• Incident slashed Drift’s TVL by over half; assessments suggest DPRK-linked tactics and highlight opsec weaknesses.

Why the heck are we still using Markdown?

Key Points

• Different Markdown inputs can produce identical HTML outputs, underscoring redundancy.
• Emphasis syntax and nesting introduce parsing complexity and inconsistencies.
• A ReDoS CVE affecting markdown-it highlights security risks in Markdown parsers.

A School District Tried to Help Train Waymos to Stop for School Buses

Key Points

• Waymo recalled software after acknowledging incidents to NHTSA but violations continued.
• AISD organized a data collection event to help Waymo capture bus and stop-arm signal data.
• NTSB is investigating ongoing incidents involving Waymo vehicles and school buses in Austin.

Show HN: An evidence-rated encyclopedia of peptides

Key Points

• The site catalogs 77 socially prominent peptides and rates them by clinical evidence, legal status, and pharmacokinetics without giving medical advice.
• It contrasts gray-market research peptides with 30 selected FDA-approved peptide drugs, supported by data from 2,632 clinical trials.
• The article explains why many peptides remain unapproved—pharmacokinetic challenges, lack of patentability, weak human evidence—and warns about risks of unregulated use and unreliable research.

Firm boosts H.264 streaming license fees from $100k up to staggering $4.5M

Key Points

• H.264 streaming license cap replaced by tiered fees up to $4.5M/year for largest platforms.
• New tiers apply to unlicensed implementers seeking 2026+ licenses; existing licensees keep old terms.
• Rising codec royalties across multiple codecs could push major platforms toward nine-figure annual costs.

Async Python Is Secretly Deterministic

Key Points

• Newly created asyncio tasks start in FIFO order, yielding a deterministic initial sequence.
• Assign step IDs before the first await to lock in deterministic step ordering.
• This enables concurrent workflows that are still replayable for durable execution.

How to Make a Sliding, Self-Locking, and Predator-Proof Chicken Coop Door (2020)

Key Points

• Self-locking vertical sliding door operated by external string
• Doorway sizing and placement deter lifting and reduce litter spillage
• Optional spring hinge removes need for a counterweight

Age Verification on Systemd and Flatpak

Key Points

• Apple is enabling age verification on iPhone and iPad in the UK and has restricted Advanced Data Protection for new UK users.
• Systemd and Flatpak are exploring age-verification features, potentially influenced by California’s AB 1043.
• The article questions how age can be reliably verified on Linux when users have root access to their systems.

Update on the eBay Scam

Key Points

• eBay suspended/terminated the buyer’s account and noted it in the message thread.
• No refund has been requested; the seller currently retains both the watch and the funds.
• The seller will re-list the watch at a discount due to missing original components/packaging.

You can now run a full Linux operating system inside a 6mb PDF

Key Points

• A 6 MB PDF reportedly runs a full Linux OS via an embedded RISC-V emulator.
• It functions interactively within the PDF and requires only a standard PDF reader.
• No virtual machine is needed; the OS and emulator are self-contained in the document.

Artemis II crew take 'spectacular' image of Earth

Key Points

• Artemis II images captured after Orion’s trans-lunar injection burn show Earth, auroras, and Venus.
• Mission marks first human travel beyond Earth orbit since 1972, with Moon flyaround 6–10 April.
• Additional images highlight the terminator and Earth’s nighttime city lights.

Three main saturated fats raise your cholesterol

Key Points

• Lauric, myristic, and palmitic acids are the main LDL/ApoB-raising saturated fats.
• Stearic acid is LDL-neutral; dark chocolate’s fat profile is comparatively heart-friendly.
• Coconut oil raises LDL versus non-tropical oils, per a 2020 Circulation meta-analysis.

Oracle Files H-1B Visa Petitions Amid Mass Layoffs

Key Points

• Oracle filed 2,690 H-1B petitions for FY2025 and 436 so far for FY2026.
• Reports indicate Oracle is laying off thousands; the company has not commented publicly.
• Fiscal year windows for the filings are FY2025 (Oct 2024–Sep 2025) and FY2026 (Oct 2025–Sep 2026).

What changes when you turn a Linux box into a router

Key Points

• Seven-step checklist: IP forwarding, bridge, nftables, conntrack, NAT/masquerade, dnsmasq, hostapd.
• Linux by default does not forward packets; routing requires enabling forwarding and typically two NICs.
• Kernel hooks (used by nftables) separate core packet processing from policy like filtering and NAT.

Automatic Textbook Formalization

Key Points

• RepoProver orchestrates LLM agents to formalize textbooks in Lean with git-based coordination.
• It has automatically formalized Darij Grinberg’s Algebraic Combinatorics.
• Provides local and SLURM-based distributed execution with structured project setup requirements.

Show HN: Ismcpdead.com – Live dashboard tracking MCP adoption and sentiment

Key Points

• Dashboard verdict: MCP is thriving based on 282 signals.
• MCP 2026 roadmap targets scalability, agent communication, governance, and enterprise readiness.
• Ecosystem growth via new integrations (llama.cpp, Gainsight, EmDash) and practical data-to-LLM use cases.

PIGuard: Prompt Injection Guardrail via Mitigating Overdefense for Free

Key Points

• NotInject: 339 benign samples with 113 trigger words assess over-defense.
• PIGuard with MOF reduces trigger-word bias and achieves SOTA results.
• Open release of code, data, and training details for reproducibility.

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

Key Points

• 14 open roles across Engineering, Field Operations, and G&A
• Primarily full-time, on-site at San Leandro HQ with select field roles
• Includes senior engineering roles, a Summer 2026 internship, and one contract position

DCJ11Hack+ – DEC PDP/11 based homebrew computer

Key Points

• Modular DCJ11-based PDP‑11 homebrew design with KiCad files and PAL logic provided.
• Boots into ODT with 115200 8N1; defined memory map for RAM/ROM/displays and future use.
• 16‑bit word‑only memory access; example programs and recommended tooling for development.

Iran Strikes Leave Amazon Availability Zones "Hard Down" in Bahrain and Dubai

Key Points

• Two AWS availability zones in Bahrain and Dubai are “hard down,” with extended outages expected.
• Amazon is directing teams and customers to migrate workloads from the affected regions.
• No timeline has been given for restoring normal operations in the DXB and BAH regions.

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

Key Points

• Sub-10 KB kernel, 2 KB RAM minimum with preemptive 256-level priority scheduling and priority inheritance
• Integrated networking and security: IPv4 stack, HTTP, MQTT, CoAP, TLS/DTLS via mbedTLS
• Cross-platform support for Cortex‑M, RISC‑V, and experimental AVR with quick-start examples

The Hardest Document Extraction Problem in Insurance

Key Points

• Loss runs demand reasoning across semi-structured, multi-table documents beyond basic OCR.
• FurtherAI’s self-correcting agent improved row count accuracy from 80% to 95%.
• Initial schema-based API extraction worked on clean files but failed on messy real-world cases.

The house is a work of art: Frank Lloyd Wright

Key Points

• Wright’s credo centered on individuality, artful homes, and democracy’s primacy.
• His design blended interior and exterior spaces and embraced eclectic interiors.
• Broadacre City reflected a civic vision balancing modern commerce with human dignity.

Fake Fans

Key Points

• Chaotic Good Projects is alleged to create fake fan accounts to spur virality.
• The company removed a “Narrative Campaign” section and some artist listings after publication.
• Clients cited include Alex Warren, Sombr, Dua Lipa, Shawn Mendes, and Justin Bieber.

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

Key Points

• Third-party harness use (e.g., OpenClaw) will require separately billed extra usage from April 4.
• Subscriptions still cover Claude Code and Claude Cowork; credits and discounts offered.
• Refund options will be provided via a follow-up email.

How to Write Unmaintainable Code (1999)

Key Points

• Uses satire to present techniques that intentionally hinder maintainability.
• Advocates misleading comments, deceptive naming with side effects, and no encapsulation.
• Encourages duplication, lack of variable docs, and unreadable formatting to obstruct comprehension.

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

Key Points

• Disguises Telegram traffic as TLS 1.3 HTTPS with layered DPI evasion techniques.
• Implements MTProto v2 obfuscation, multi-user access control, and anti-replay security.
• Lightweight, dependency-free design with full build/deploy/update tooling.

Bourbon waste could provide next-gen supercapacitor components

Key Points

• Wet bourbon stillage converted into electrode carbons via hydrothermal carbonization
• Waste-derived materials enabled supercapacitors with commercial-level energy density
• Proof-of-concept suggests potential new revenue stream for distilleries

Extra usage credit for Claude to celebrate usage bundles launch (Pro, Max, Team)

Key Points

• One-time credit equals the plan price and is available only April 3–17, 2026.
• Eligibility requires enabling Extra usage; Enterprise and Console accounts are excluded.
• Credit expires 90 days after claim and applies across Claude products and third-party integrations.

Run Linux containers on Android, no root required

Key Points

• Runs Podman inside an Alpine Linux VM on Android with no root required.
• Provides persistence, built‑in terminal, and configurable port forwarding.
• Uses QEMU (TCG) with SLIRP networking and QMP for control; Android 14+ arm64 required.

The FAA "Temporary" Drone Restriction Blatant Attempt to Criminalize Filming ICE

Key Points

• Nationwide FAA TFR FDC 6/4375 restricts drones within 3,000 feet of specified federal assets until Oct 29, 2027.
• EFF and major media asked FAA to rescind; EFF says no response after two months.
• EFF alleges First/Fifth Amendment and FAA regulatory violations by the TFR.

Herbie: Automatically improve imprecise floating point formulas

Key Points

• Herbie rewrites floating‑point expressions to improve accuracy via a web-based workflow.
• A demo shows accuracy improvements from 53.2% to 99.7% and a 1.9× speedup in one alternative.
• A case study (math.js bug 208) illustrates extracting and converting complex-number code for Herbie analysis.

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

Key Points

• Windows++ is a lightweight C++ framework that wraps the Windows API and hides WinMain.
• It supports multiple compilers and runs on Windows 3.1 through XP, with a DLL around 84 KB.
• Includes full source and samples; both Win32 and 16-bit downloads are available.

Show HN: Travel Hacking Toolkit – Points search and trip planning with AI

Key Points

• Supports OpenCode and Claude Code with guided setup and MCP integrations
• Includes five free MCP servers; Seats.aero and SerpAPI recommended for core award/cash comparisons
• Provides a clear points-vs-cash workflow with portal valuation guidance and booking links

Getting Claude to QA its own work

Key Points

• MCP-powered browser tools let Claude Code QA its own frontend changes via real UI interactions.
• Open-source /qa and /smoke-test skills run targeted tests from git diffs locally and in CI.
• Reported gains: ~70% one-shot PRs (up from ~30%) and a halved QA feedback loop.

The Philosopher and the Tsar

Key Points

• Peter the Great’s Grand Embassy sought Western scientific and technological knowledge under conditions of secrecy.
• Leibniz’s correspondence documents Peter’s visit with Elector Friedrich I in Königsberg and his impressions of German social norms.
• An anecdote contrasts disciplinary practices in Muscovy with the “gentle” customs Peter observed in Germany.

Gold overtakes U.S. Treasuries as the largest foreign reserve asset

Key Points

• Gold reserves near $4T surpass ~$3.9T in U.S. Treasuries for the first time since 1996.
• Central banks added 1,100+ tonnes in 2025; total holdings now ~36k–37k tonnes (25–27% of reserves).
• Geopolitical tensions and U.S. policy uncertainty fueled a >70% price surge to above $4,500/oz.

Europe asks if reviving nuclear is the answer to energy shocks

Key Points

• EU leaders call past nuclear retrenchment a strategic mistake as nuclear’s share fell to ~15%.
• Countries including Italy, Belgium, Greece, Sweden, and the UK move to revive or expand nuclear.
• National energy mixes drive price differences, with nuclear- and renewables-heavy systems showing lower prices.

An experimental guide to Answer Engine Optimization

Key Points

• Move marketing content to markdown/Markdoc or MDX for AI legibility while preserving React-based interactivity.
• AI referral traffic is rising and many Google searches end without clicks, increasing the importance of AEO.
• Use metadata, middleware, and draft standards (llms.txt, Content-Signal) to improve AI discovery and citation.

New Color Mode Coming to GIMP

Key Points

• GIMP is adding an EGA color mode with 16 colors from a 64-color palette and 640×350 resolution.
• Early-binding editing in EGA mode will replace the prior export-only (late-binding) workflow.
• Future expansions may include CGA, 1-bit, and 0-bit modes, targeting GIMP 3.4 development builds.