Old and new apps, via modern coding agents by Terry Tao

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A mathematician successfully migrated 1999 Java applets to JavaScript via AI, reviving tools like honeycomb and Besicovitch set visualizers with minimal bugs. They also created new interactive visualizations for special relativity and the Gilbreath conjecture using AI, finding the process efficient and low-risk for supplementary educational tools.

Yt-Dlp Sequence Diagrams

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The Ilograph diagrams document AWS serverless back-end and Stack Overflow's on-prem architecture. They enable team collaboration with permissions, password policies, and bug reporting via [email protected].

Ghostel.el: Terminal emulator powered by libghostty

Ghostel is an Emacs terminal emulator using libghostty-vt, offering modern VT features like Kitty protocols, rich underlines, and OSC 8 hyperlinks. It integrates with Emacs via Elisp and a Zig-native module, supporting shell commands, password prompts, and TRAMP remote terminals.

Understanding the Odin Programming Language

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Understanding the Odin Programming Language teaches basic to advanced Odin concepts, emphasizing design rationale and practical examples, endorsed by Odin's creator and praised for clarity. Karl Zylinski, an experienced game developer and educator, updates the book with language changes and offers insights into low-level programming.

Vint Cerf, a “father of the Internet”, is retiring

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Vint Cerf, co-creator of TCP/IP and retiring Google VP, emphasized standardized protocols for AI agent interoperability at a conference, while panelists discussed open-source sustainability and challenges in AI centralization. His legacy includes pioneering internet protocols and advocating for structured communication over natural language ambiguity.

Show HN: Mindwalk – Replay coding-agent sessions on a 3D map of your codebase

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Mindwalk visualizes coding sessions as interactive night maps, showing agent activity via glowing file interactions (read/edit) in Tree/Terrain views. A local Go tool parses logs, installs securely, and serves a UI with playback, touch states, and session analysis.

Mesh LLM: distributed AI computing on iroh

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Mesh LLM enables distributed GPU pooling for OpenAI-compatible APIs, offering control, cost efficiency, and peer-to-peer networking via iroh, avoiding centralized cloud lock-in. It splits models across devices, supports private/public deployment, and uses decentralized QUIC connections for seamless, scalable inference.

Woman in Brazil enslaved for 55 years by 3 generations of the same family

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Maria, 62, was rescued after 55 years of unpaid domestic servitude in Brazil, exploited by three generations of a family, now to receive $40k in compensation. Case highlights persistent domestic slavery, often affecting poor Black women, with victims unaware of their rights.

Protobuf-py: Protobuf for Python, without compromises

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protobuf-py is a Python-native Protocol Buffers library with full spec support, Pythonic API, and Rust acceleration, offering faster real-world performance than Google's C-based upb while avoiding runtime dependencies and global state. It addresses longstanding issues in Python Protobuf tooling by generating readable, typed code and preserving spec compliance without sacrificing usability.

Xbox 'OG' Adventures

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The user ported their game engine to the original Xbox as a personal project, overcoming challenges like adapting modern C++/Vulkan to outdated tools, converting assets through multiple formats, and using legacy SDKs. They prioritized official documentation and original toolchains over homebrew solutions, emphasizing technical hurdles in supporting obsolete hardware.

Handsum: An LQIP Image File Format

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Handsum is a DCT-based LQIP format offering fixed-size thumbnails (48-147 bytes) for predictable storage and fast loading, outperforming Blurhash/Thumbhash in quality at similar sizes while simplifying JPEG-like compression. Its fixed-byte design streamlines database storage and decoding, balancing efficiency with visual fidelity for low-res previews.

Nvidia, CoreWeave, and Nebius: Inside the Circular Financing of the GPU Boom

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Neoclouds like CoreWeave and Nebius grow via hyperscaler demand for AI infrastructure, leveraging Nvidia GPUs and optimizing compute utilization. However, rapid expansion relies on high debt and circular financing with Nvidia, risking sustainability amid cash flow gaps and macroeconomic pressures.

An agent in 100 lines of Lisp

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The author revisits Lisp's role in 1990s symbolic AI, now experimenting with its code-as-data feature to build a minimalist AI agent that dynamically generates and executes tools via recursion, contrasting modern fixed-agent frameworks. This approach mirrors human learning through memory-driven skill rehydration, suggesting Lisp's enduring relevance in agent design.

Datacentres drive up big tech's carbon emissions to a third of those of France

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Microsoft, Amazon, and Google's carbon emissions surged 19% in 2024 due to AI-driven datacenter construction, yet they maintain net-zero pledges. Rising cloud demand and scarce carbon credits challenge offset efforts as global datacenter projects consume 1.3% of projected global electricity by 2030.

Show HN: Ant – A JavaScript runtime and ecosystem

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Ant uses Hono for isolated module initialization without an HTTP server, enabling 40x faster package installation and secure execution via VM sandbox. It leverages ants.land registry with npm protocol support, offering ESM compatibility and cross-manager package management.

Ditching Zotero for a Text File

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It's fairly well established by this point that I like minimal computing. Despite usually working on notoriously resource-intensive AI projects, there's nothing I like more than getting the most out of my machine in the simplest, cleanest way possible. As an academic, it's natural to keep track of dozens, if not hundreds, of sources at any one time; pulling from various papers, ...

RISCBoy is an open-source portable games console, designed from scratch

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A Gameboy Advance-inspired RISC-V processor in Verilog for iCE40-HX8k FPGA, supporting RV32IMC and compliance tests. Requires RISC-V toolchain setup, simulation with ISIM, and PCBs for prototyping.

Text art tools

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A collaborative AI workspace, built on your company context. Build and orchestrate agents right alongside your team's projects, meetings, and connected apps.

Fibonacci's Real Mathematical Legacy

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Leonardo Pisano (Fibonacci) introduced Hindu-Arabic numerals to Europe, revolutionizing trade and math by replacing Roman numerals, though the famed Fibonacci sequence predates him. His 1202 *Liber Abaci* spurred arithmetic education but debates persist over its direct influence on later texts, with claims about a "missing link" manuscript remaining contested.

I Did Not Kill Stanley Lieber: How to Draw (With 9front)

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This document explains how to draw on 9front using various input devices like mice, tablets, and touchscreens, focusing on the paint(1) program for digital art creation. It covers techniques for image manipulation, file conversion to formats like PNG, and methods for sharing artwork via external drives or network connections.

EF Core 11 makes your split queries faster

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EF Core 11 optimizes AsSplitQuery by splitting queries to avoid JOINs, reducing redundant data and improving performance. It prunes unnecessary JOINs/ORDER BYs in collection queries but may introduce non-atomic state risks; benchmarks compare EF 10/11 with .NET version changes.

UPI: Anatomy of a Payment Transaction

UPI payments involve apps, sponsor banks, and NPCI's central switch, with money debited before crediting, ensuring reliability despite hidden complexity. Over 2,272 crore transactions in June 2026 highlight its scale, with failures mostly due to user errors, not system flaws.

Modern decor may be straining people's brains

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Striped floors and flickering LEDs may overload the brain, causing headaches or nausea by triggering excessive neural activity, particularly affecting neurodivergent individuals. The study suggests design adjustments like reducing contrast and using tinted lenses could alleviate discomfort by addressing visual stress.

Billions of Sketches Reveal Hidden Cultural Variation in Human Concepts

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Analyzing 2.6B sketches from 236 countries reveals greater cross-cultural conceptual variation than linguistic methods, especially for haptic concepts. Visual representations show 45% stronger alignment with cultural distances than text, suggesting modality shapes perceived universality.

We scaled PgBouncer to 4x throughput

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Using multiple PgBouncer processes with SO_REUSEPORT and peering leverages all CPU cores, achieving 4x throughput vs. a single process. This setup avoids pooler bottlenecks, maximizing resource use under high concurrency.

The early History of the Singular Value Decomposition (1993) [pdf]

Jellyfish Undersea Roundabout

Under federal rule, colleges must leave grads better off or lose financial aid

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The U.S. Department of Education's new "do no harm" test links federal student loans to graduate earnings, risking funding for programs where graduates don't outearn non-graduates. Critics argue it overlooks arts and creative fields' cultural value and long-term career impacts, despite most programs passing initial thresholds.

A dock that wakes up reliably

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User struggled with unreliable laptop wake-up from sleep via Thunderbolt docks, even with Thunderbolt 4. Switching to an ASUS ROG Swift monitor in 2025 resolved the issue, though the cause remains unclear.

Prefer strict tables in SQLite

SQLite's strict tables enforce rigid typing to prevent data type errors, require valid column definitions, and allow 'ANY' for flexibility. Introduced in 3.37.0, they improve data integrity but require upfront setup and may conflict with older versions or flexible use cases.