AI Bubble Bursts, Big Tech Stocks Bleed!

Volkswagen overtook Tesla as Europe's top EV seller in 2025

Key Points

• Volkswagen led Europe’s BEV sales in 2025, surpassing Tesla.
• VW sold 274,278 BEVs vs. Tesla’s 236,357, aided by demand for the ID.7.
• European BEV registrations rose 29% in 2025; JATO’s data cover 28 countries.

Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

Key Points

• Open-source, MIT-licensed registry with enterprise features and 45+ native package formats
• Built-in security scanning (Trivy, Grype), SSO options, RBAC, and policy enforcement
• Rust-based backend, WASM extensibility, and deployment via Docker/Kubernetes/AWS

How to carry more than your own bodyweight (2025)

Key Points

• Bamboo pole load-carrying synchronized with gait can reduce effort by ~18%.
• Strength training improves health outcomes and mobility, especially in older adults.
• Progressive, technique-focused training with 2–5 minute rests optimizes strength-power.

Stay Away from My Trash

Key Points

• tldraw will auto-close external PRs after a wave of low-quality AI-generated submissions.
• The team accepts AI-assisted coding; the bottleneck is contributor context and design alignment, not code writing.
• Recent AI PRs passed checks but lacked context, amplified flawed issues, and were often abandoned.

The Color of Safety

Key Points

• Color is an effective, low-cost signaling variable for human-in-the-loop control environments.
• Engineers have sidelined color due to automation challenges and human variability.
• The Birren palette exemplifies functional color coding but now carries nostalgic connotations.

Plasma Effect

Key Points

• Plasma effect arises from combined sine/cosine wave interference and time-driven animation.
• Early systems used lookup tables; modern GPUs compute effects in real time.
• GLSL implementation includes cosine-based color mapping and specular highlights via dFdx/dFdy.

Sealos – AI Native Cloud Cloud Operating System

Key Points

• AI‑native, Kubernetes‑based platform unifying development to production.
• Managed databases and S3‑compatible storage with one‑click app deployments.
• Custom Sustainable Use License permitting internal use but restricting third‑party cloud services.

Invention of DNA "Page Numbers" Opens Up Possibilities for the Bioeconomy

Key Points

• Sidewinder assembles many short oligos into long, accurate DNA sequences using a page-number-like system.
• The method addresses chemical synthesis limits and links AI-designed sequences to real DNA constructs.
• Published in Nature, the technique aims to accelerate applications in therapeutics, agriculture, and materials.

A new bill in New York would require disclaimers on AI-generated news content

Key Points

• Bill requires labels and human review for AI-generated news content across formats.
• Mandates newsroom disclosure of AI use and safeguards for source confidentiality.
• Includes labor protections and has broad union support.

DNS Explained – How Domain Names Get Resolved

Key Points

• DNS resolves via a hierarchy (root → TLD → domain) with 13 root server clusters directing queries.
• TLDs have policies (e.g., .dev requires HTTPS; .gov is U.S. government-only) and registrars manage domain purchases.
• Core records: A/AAAA map to IPs, CNAME aliases domains, and MX routes email.

US Immigration on the Easiest Setting

Key Points

• The author’s path spanned decades, culminating in U.S. citizenship in 2022.
• High legal costs and voluminous documentation are central features, even for advantaged applicants.
• Employer sponsorship ties residency to employment; independent applicants face heavy administrative demands.

Show HN: Agent Arena – Test How Manipulation-Proof Your AI Agent Is

Key Points

• Guided test flow: browse the test page, summarize, then score the agent’s output.
• Ten attack vectors with hidden canaries reveal manipulation post-analysis.
• Defense must span both model and application layers to counter hidden instructions.

Coding Agents and Use Cases

Key Points

• Pick coding agents based on use case and constraints, not model rankings.
• Standardize on one tool to align the team and avoid tool sprawl.
• Amp and OpenCode most often delivered better productivity and outcomes in consultations.

TikTok's 'Addictive Design' Found to Be Illegal in Europe

Key Points

• EU says TikTok’s infinite scroll, auto-play, and algorithm amount to illegal addictive design.
• This is the first application of a legal standard for social media addictiveness globally.
• TikTok must change core design features or face fines; the company will challenge the finding.

I Now Assume That All Ads on Apple News Are Scams

Key Points

• Apple’s 2024 ad deal with Taboola coincides with a rise in suspicious Apple News ads.
• WHOIS checks show several advertised domains were registered recently.
• Apple News+ costs £13 yet still includes ads.

Show HN: Smooth CLI – Token-efficient browser for AI agents

Key Points

• AI agents control the browser via natural language goals rather than low-level actions.
• Claims up to 20x speed and 5x cost improvements through a specialized UI-control model.
• Offers fully managed, parallel cloud browsers with features like IP routing and persistent sessions.

Nixie-clock using neon lamps as logic elements

Key Points

• Neon-lamp ring counters divide 50 Hz mains to drive Nixie digits.
• Modern neon bulbs require tuning and matching due to altered voltage characteristics.
• Optical LDR coupling and controlled ambient light stabilize operation.

Solving Shrinkwrap: New Experimental Technique

Key Points

• Experimental technique uses anchor positioning and scroll-driven animations to achieve layout-affecting shrinkwrap.
• Works in many cases in stable Chrome and Safari, with graceful degradation elsewhere; caution due to Safari instability.
• Grounded in CSS2 shrink-to-fit behavior and prior community discussions on true shrinkwrapping.

LLMs could be, but shouldn't be compilers

Key Points

• LLMs lack the deterministic guarantees that compilers provide.
• Higher-level languages reduce mental complexity via non-trivial mappings to low-level instructions.
• Useful abstractions require surrendering some control for predictability.

The rise of one-pizza engineering teams

Key Points

• AI tools shift bottlenecks from coding to product and design.
• Product engineers help bridge PM/design gaps while specialists safeguard code quality.
• Hiring may move from full‑stack generalists to deeper back‑end/front‑end expertise.

Amazon plunge continues $1T wipeout as AI bubble fears ignite sell-off

Key Points

• Amazon projects $200B capex in 2026, spooking investors and driving a >9% share drop.
• Big Tech capex could exceed $660B in 2024; $1T+ in value wiped from major tech stocks this week.
• Analysts downgraded Amazon, citing AWS risks and AI-driven market shifts.

Microsoft open-sources LiteBox, a security-focused library OS

Key Points

• Security-focused library OS that minimizes host interface to reduce attack surface.
• Rust-inspired “North” interface over a pluggable “South” platform for kernel and non-kernel use.
• Active development, MIT-licensed, and example use cases include Linux-on-Windows and trusted execution.

Understanding Neural Network, Visually

Key Points

• Explains neural networks through an interactive visualization.
• Uses handwritten digit recognition to illustrate inputs and outputs.
• Details weights, summations, and threshold-based activation across layers.

Wall Street just lost $285B because of 13 Markdown files

Key Points

• The ‘Anthropic legal tool’ was identified by the author as Markdown files in a GitHub repo, not a full product.
• Agentic AI can bypass traditional SaaS interfaces by executing tasks from instructions, especially with access to source material.
• Systems of record remain defensible and can empower agents when exposed via interfaces like MCP or APIs/CLI.

NIMBYs Aren't Just Shutting Down Housing

Key Points

• YIMBY Law’s letters spurred Rancho Palos Verdes to approve upzoning for 647 homes.
• A bar complaint alleges unauthorized practice of law; Trauss argues First Amendment protections apply.
• YIMBY Law continues broader litigation efforts, including a suit against the State of California over duplex restrictions.

An Update on Heroku

Key Points

• Heroku moves to a sustaining engineering model prioritizing stability and support.
• No changes for credit-card customers; core platform features remain unaffected.
• New enterprise contracts end, while existing enterprise agreements continue and may renew.

Animated Engines

Key Points

• Clickable animations demonstrate how various engine types operate.
• Coverage spans internal combustion, jet propulsion, steam, beam, and Stirling engines.
• Social links (Twitter, Facebook, RSS) are provided for following or sharing content.

The Monad Called Free

Key Points

• Defines Free with Functor and Monad instances and reframes it as a higher-order monad in Endo.
• Formalizes Endo using functors as objects and natural transformations as arrows, with a Natural type alias.
• Introduces HFunctor (ffmap, hfmap) and discusses Endo products via functor composition, sums, and list/Monoid analogs.

The Waymo World Model: A New Frontier for Autonomous Driving Simulation

Key Points

• Waymo launches a generative, multi-sensor simulation model built on DeepMind’s Genie 3.
• The system offers driving, scene, and language controls for counterfactual and new-route simulations.
• Generative simulation outperforms reconstructive methods like 3DGS when routes deviate.

White House launches direct-to-consumer drug site TrumpRx

Key Points

• TrumpRx aggregates manufacturer discounts and coupons but does not sell drugs directly.
• Launch partners include AstraZeneca, Eli Lilly, EMD Serono, Novo Nordisk, and Pfizer, with more to follow.
• Potential benefits skew toward cash-paying patients; insured users may see limited savings and benefit-tracking complications.

Bytes as Braille

Key Points

• Maps bytes to Unicode Braille for compact binary display and reversibility.
• Reorders Braille code points to match byte values rather than Unicode order.
• Script (with input and colorization options) is available on GitHub.

The overlooked evolution of the humble car door handle

Key Points

• Handles evolved from household-style mechanisms to varied automotive designs enabled by rods/cables.
• Flush handles use actuator-driven or spring-loaded mechanisms, with fail-safes for power loss.
• Latch and striker placement are optimized for safety, often lower and near the door’s mass midpoint.

Bits About Money: Fraud Investigation Is Believing Your Lying Eyes

Key Points

• Viral Minnesota daycare fraud claims spotlight tensions between sensational reporting and evidentiary rigor.
• Financial industry fraud management offers transferable lessons: structured teams, apprenticeship, and acceptance of non-zero fraud.
• A 2019 state audit alleged widespread daycare reimbursement fraud, urging stronger oversight and knowledge-sharing.

Learning from context is harder than we thought

Key Points

• Current models excel at benchmarks but struggle with inference-time context learning.
• Three long-context, real-world scenarios highlight the capability gap.
• CL-bench resources are provided to evaluate and advance context learning.

Show HN: Daily-updated database of malicious browser extensions

Key Points

• Continuously updated list of malicious Chrome/Edge extensions removed from the Chrome Web Store.
• Aggregates data from monitoring services, research publications, and threat feeds; provides CSV/MD formats.
• Planned Python tool for macOS will enable local checks; contributions and verification are encouraged.

Show HN: I spent 4 years building a UI design tool with only the features I use

Key Points

• Browser-based UI design tool with real-time collaboration and high-performance rendering.
• Pay-per-editor pricing with a free tier; annual billing offers up to 20% savings.
• EU-based with European privacy standards; defined support hours and response times.

The Gnome Village: Treads fight, gnomes cooperate (2025)

Key Points

• BEAM processes are isolated with per-process heaps and garbage collection.
• Communication uses message passing with copying; large binaries are by reference.
• Mailboxes provide natural backpressure and visibility into bottlenecks.

Man who videotaped himself BASE jumping in Yosemite arrested. He says it was AI

Key Points

• Federal complaint charges Jack Propeck over an alleged BASE jump at Yosemite’s Glacier Point.
• Evidence includes an Instagram video and license plate reader data placing Propeck in the park.
• Propeck claims the video used AI to superimpose his face; arraignment is set for April 7.

How to effectively write quality code with AI

Key Points

• Set explicit architectural and testing decisions to guide AI-generated code.
• Maintain standardized, in-repo documentation with diagrams and pseudocode.
• Use consolidated debugging and review markers, and author high-level, property-based tests yourself.

Show HN: If you lose your memory, how to regain access to your computer?

Key Points

• Threshold-based key recovery via Shamir’s Secret Sharing, preventing single-party access.
• Offline, self-contained recovery using recover.html; no servers or internet required.
• Open source (Apache-2.0) with code on GitHub and a cryptography self-audit; not a backup or cloud service.

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

Key Points

• A five-year DevSecOps tenure led to feelings of repetition and isolation.
• Transition to Solutions Engineering at Infisical preserved technical depth with customer-facing work.
• Work now spans varied industries and tasks, including Kubernetes troubleshooting and workshops.

Show HN: BioTradingArena – Benchmark for LLMs to predict biotech stock movements

Key Points

• Single-prompt classification into seven impact categories with defined percentage ranges.
• Conservative labeling guidance for extreme positive/negative outcomes.
• Strict JSON response schema and API support for custom benchmarking.

Masked namespace vulnerability in Temporal

Key Points

• Temporal’s ExecuteMultiOperation has an identity-binding flaw (CVE-2025-14986).
• Inner payload namespace is used for preparation, but outer verified namespaceID is used for routing/persistence.
• Mismatch can cause cross-tenant leakage in bundled StartWorkflow/UpdateWorkflow operations.

Claude Composer

Key Points

• Claude Code generated complete songs via Python without external dependencies.
• Genre prompts enabled creation of EDM and rock tracks with appropriate elements.
• macOS’s say command provided vocals for an original rock song with lyrics.

Welcome to the Room: A lesson in leadership by Satya Nadella

Key Points

• Deliver success without complaints; work within allocated resources.
• Leaders control two levers: team clarity/culture/energy and resource allocation.
• Failure is acceptable if leaders are intellectually honest and adjust when theories become implausible.

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

Key Points

• BreezyBox provides a shell, editor, compiler, and app installer on ESP32-S3 as a FreeRTOS userland.
• It uses ESP-IDF’s elf_loader for dynamic ELF app loading and is MIT-licensed.
• The demo targets a Waveshare ESP32-S3-Touch-LCD-7B board and is adaptable to other boards.

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

Key Points

• v0.3 “Dutch” Preview 1 adds a standalone mode with placeholder graphics.
• Early pre-alpha: playable but missing many mechanics and late-game content.
• Available for 64-bit Windows, Linux, and Mac OS, with installation guidance via CIV3_HOME.

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

Key Points

• Tiny C-based VM (~40KB) running on Windows and Linux with zero-bloat design.
• SDL2 integration with libraries for 2D/3D logic, GUI (immgui), and tooling.
• Simple setup: Linux SDL2 dev packages and GitHub build; Windows ZIP run r3.exe.

Early Christian Writings

Key Points

• Chronological index lists texts with estimated date ranges and links.
• Coverage spans canonical NT, apocryphal gospels, patristic writings, and Roman sources.
• Top navigation provides access to related resources, a blog, and a forum.

Monty: A minimal, secure Python interpreter written in Rust for use by AI

Key Points

• Monty is a minimal, secure Python interpreter written in Rust for AI use.
• The project is MIT-licensed and publicly hosted under Pydantic on GitHub.
• The repository includes active history and structured directories (crates, examples, scripts).

The Beauty of Slag

Key Points

• Native plants and stunted trees are thriving on slag at Chicago’s former US Steel South Works.
• Parallels are drawn to Sweden’s Stora Alvaret, where vegetation grows in minimal-soil conditions.
• Researchers propose that some slag sites should be left in place as novel ecosystems.

Tell HN: I'm a PM at a big system of record SaaS. We're cooked

Key Points

• Main threats to SoR incumbents are other SoR vendors, public clouds, and AI labs—not small startups.
• Portfolio overlap among SoRs will accelerate switching within incumbent ecosystems on price.
• Clouds and AI labs aim to own data and AI workloads, colliding with SoR AI platform strategies.

How virtual textures work

Key Points

• Virtual texturing streams only texture pages that contribute to the current view based on screen resolution.
• Historical PS1 paging approach shifted constraints from RAM to page size and disk space.
• 2D tiling (e.g., Google Maps, Deep Zoom) is simpler than 3D, which requires per-pixel LOD across multiple mip levels.

Evaluating and mitigating the growing risk of LLM-discovered 0-days

Key Points

• Claude Opus 4.6 finds high-severity vulnerabilities out of the box by reasoning about code, not just fuzzing.
• Researchers have validated 500+ critical bugs in open-source projects and begun coordinated patching.
• Method uses a VM with standard tools; all findings are human-validated, focusing on verifiable memory corruption issues.

Show HN: Slack CLI for Agents

Key Points

• CLI focuses on compact JSON output and zero-config auth for Slack automation.
• Supports reading threads, searching messages/files, writing replies, reactions, and Canvas-to-Markdown.
• Ships an agent skill compatible with Claude Code, Codex, and Cursor; easy install via curl or npx.

Show HN: Horizons – OSS agent execution engine

Key Points

• Rust-based modular platform for production AI agents with memory, optimization, and evaluation.
• Quick local setup via Docker Compose; SDKs for Python and TypeScript.
• Source-available FSL-1.1-Apache-2.0 license with two-year conversion to Apache 2.0.

Show HN: Gigacode – Use OpenCode's UI with Claude Code/Codex/Amp

Key Points

• Integrates OpenCode UI with Claude Code, Codex, and Amp via Sandbox Agent SDK.
• Preserves agent-native capabilities by automating their harnesses instead of OpenCode’s tool loop.
• Supports macOS/Linux/WSL with multiple installation options; Windows unsupported.

FORTH? Really!?

Key Points

• Postfix (bottom-up) structures yield higher LLM accuracy than prefix on a parity-tree task.
• Thinking-enabled runs and higher-capacity models (Opus) outperform non-thinking and smaller models (Haiku).
• Associative, local rewrites can implement advanced database join optimizations in a stack-based paradigm.

A century of hair samples proves leaded gas ban worked

Key Points

• Hair samples show a 100-fold drop in lead levels over ~100 years.
• EPA’s 1970s regulations on leaded gasoline and products are cited as the driver.
• PNAS published the study documenting the decline.

Dark Alley Mathematics

Key Points

• Transforms (x1,y1,x2,y2,x3,y3) to (x0,y0,R,θ1,θ2,θ3) for integration.
• Computes and simplifies a 6×6 Jacobian determinant using R^3 factoring and block structure.
• Reduces the determinant to a 4×4 submatrix via row operations and identity block formation.

I'm going to cure my girlfriend's brain tumor

Key Points

• MRI confirmed a pituitary prolactinoma with prolactin at 330 ng/mL.
• Medical therapy was deemed insufficient due to tumor size and growth risk to vision.
• Transnasal transsphenoidal surgery was recommended to resect the tumor.

Why I Joined OpenAI

Key Points

• Joined OpenAI to improve ChatGPT performance at AI datacenter scale.
• User anecdotes highlighted widespread, practical adoption of ChatGPT and its memory feature.
• Optimization will target the full stack, not only GPUs, based on lessons from large-scale environments.

PC Floppy Copy Protection: Vault Prolok

Key Points

• Prolok used a physical disk “fingerprint” for authentication instead of non-standard formats.
• Publishers deployed protection via pre-damaged diskettes using the PROLOK.EXE utility.
• Patent documentation describes a potential erasure response when the fingerprint check fails.

Introducing the Developer Knowledge API and MCP Server

Key Points

• Public preview of the Developer Knowledge API and MCP server provides machine-readable access to Google docs.
• Docs are searchable and retrievable as Markdown, with 24-hour re-indexing during preview.
• Setup involves creating an API key, enabling the MCP server via gcloud, and configuring tool settings.

Hello world does not compile

Key Points

• ccc fails to locate standard headers on multiple Linux environments, causing preprocessing errors.
• GCC compiles and runs the same program successfully, isolating the issue to ccc.
• Attempts with -I did not resolve header path issues; no fix provided in the report.

How we made geo joins 400× faster with H3 indexes

Key Points

• Geometries are converted to H3 cell sets and joined on cell IDs to prefilter candidates.
• Coverage is conservative: allows false positives, avoids false negatives; exact predicate rechecks confirm matches.
• The method leverages integer equi-joins to achieve major performance gains (claimed up to 400×).

Make Trust Irrelevant: A Gamer's Take on Agentic AI Safety

Key Points

• Soft, intent-based safeguards are insufficient; hard, local enforcement is required.
• Ambient authority is the dominant failure vector in agentic AI systems.
• Server/model controls cannot mediate local OS-level effects.

Delimited Continuations vs. Lwt for Threads

Key Points

• Lwt models async in OCaml via monads (return, bind, run) and provides syntax extensions for readability.
• Concerns include code adaptation for blocking operations and closure-allocation overhead.
• Delimited continuations (delimcc) and Lwt_fiber offer a fiber-based alternative with start and await.

WebView performance significantly slower than PWA

Key Points

• WebView on Android 12 (v98.0.4758.54) shows slower performance than PWA for the same app flow.
• Repro steps in TopDecked reveal jittery modal scrolling in WebView versus smooth scrolling in PWA.
• Diagnostics requested: bug reports and ADB screen recordings with “Show taps” enabled.

Show HN: ARM64 Android Dev Kit

Key Points

• Linux ARM64-only full-stack support, including Cuttlefish; x86_64 excluded.
• gRPC microservices with GTK4 UI/CLI thin clients and a JobService event bus.
• Toolchains downloaded on demand via catalogs; includes Linux ARM64 SDK/NDK and Windows ARM64 NDK.