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

21 cosmtrek 2026-07-12 06:38:28 UTC github.com/cosmtrek Qwen Share 3

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

239 tionis 2026-07-11 23:38:28 UTC iroh.computer Qwen Share 51

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.

Vint Cerf, a "father of the Internet", is retiring

44 compiler-guy 2026-07-12 04:38:28 UTC techcrunch.com Qwen Share 14

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.

Protobuf-py: Protobuf for Python, without compromises

28 ming13 2026-07-12 05:38:28 UTC buf.build Qwen Share 1

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.

Text art tools

28 surprisetalk 2026-07-12 04:38:28 UTC hlnet.notion.site Full Share 10

A huge list of unconventional graphic design and text art tools, updated regularly (2026)

Show HN: Ant – A JavaScript runtime and ecosystem

256 theMackabu 2026-07-11 20:38:28 UTC antjs.org Qwen Share 109

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.

An agent in 100 lines of Lisp

133 jamiebeach 2026-07-12 01:38:28 UTC thebeach.dev Qwen Share 15

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.

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

133 mariuz 2026-07-11 22:38:28 UTC github.com/wren6991 Qwen Share 19

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.

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

250 adletbalzhanov 2026-07-11 17:38:28 UTC io-fund.com Qwen Share 84

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.

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

64 c-c-c-c-c 2026-07-12 00:38:28 UTC triapul.cz Qwen Share 19

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

36 rellem 2026-07-12 03:38:28 UTC steven-giesel.com Qwen Share 7

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.

Jellyfish Undersea Roundabout

35 hydrogen7800 2026-07-12 01:38:28 UTC visitfaroeislands.com Full Share 4

UPI: Anatomy of a Payment Transaction

177 prtk25 2026-07-11 16:38:28 UTC timeseriesofindia.com Qwen Share 64

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

179 downwithdisease 2026-07-11 16:38:28 UTC studyfinds.com Qwen Share 188

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.

We scaled PgBouncer to 4x throughput

204 saisrirampur 2026-07-11 15:38:28 UTC clickhouse.com Qwen Share 44

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.

Billions of Sketches Reveal Hidden Cultural Variation in Human Concepts

93 Anon84 2026-07-11 20:38:28 UTC arxiv.org Qwen Share 13

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.

Handsum: An LQIP Image File Format

3 dmit 2026-07-12 06:38:28 UTC nigeltao.github.io Prefix Share 0

Low Quality Image Placeholders (LQIPs) are very small (both in terms of file size and pixel dimensions) images that load very quickly, providing immediate visual feedback while full-resolution images load slowly in the background. They are small-in-file-size enough that it’s feasible to base64-encode and inline them into a web page, minimizing network round-trips and improving page load ...

The Energetic Costs of Cellular Computation (2012)

20 lioeters 2026-07-12 02:38:28 UTC arxiv.org Qwen Share 3

Cells expend energy to compute ligand concentrations using noisy two-component networks, with greater learning requiring higher energy costs. This energy constraint impacts resource-poor systems like bacterial spore germination networks.

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

70 nradov 2026-07-12 04:38:28 UTC npr.org Qwen Share 115

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.

Unexpected Solidlike Fracture in Simple Liquids

87 Anon84 2026-07-12 02:38:28 UTC quantamagazine.org Qwen Share 45

Thamires Lima discovered a nonelastic fluid can fracture like brittle solids, defying theories that elasticity causes fluid cracking. This challenges assumptions about stress-induced fluid failure, with potential impacts on engineering, medicine, and material science.

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

115 wolfi1 2026-07-11 15:38:28 UTC math.ucdavis.edu Full Share 63

A pure scheme web programming tool

91 guenchi 2026-07-12 01:38:28 UTC goeteia.dev Qwen Share 22

The Scheme compiler is self-hosted, using unboxed fixnums, GC structs, and hygiene via renaming, with fast variadic calls and Wasm-based continuations. It integrates web APIs (HTML, WebGL, JS FFI) and reactive systems, enabling RPC with exact s-expression data and efficient rendering.

Optimization Solver as a Service

38 paddi91 2026-07-11 22:38:28 UTC quicopt.com Qwen Share 30

Quicopt solves LP, QP, MILP, and QUBO models via Python (OR-Tools/Pyomo) with a free tier requiring no API key. It auto-sets up keys, returns detailed results, and retains submitted data for solver improvement.

Prefer strict tables in SQLite

280 ingve 2026-07-11 17:38:28 UTC evanhahn.com Qwen Share 131

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.

A dock that wakes up reliably

71 ingve 2026-07-12 01:38:28 UTC fabiensanglard.net Qwen Share 44

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.

Senator Lindsey Graham, Republican of South Carolina, Dies at 71

9 josefrichter 2026-07-12 07:53:28 UTC nytimes.com Full Share 2

Please enable JS and disable any ad blocker

Biff.graph: structure your Clojure codebase as a queryable graph

128 jacobobryant 2026-07-11 18:38:28 UTC github.com/jacobobryant Qwen Share 15

Biff.graph is a lightweight, Pathom-inspired library for querying databases and derived data as a unified graph using resolvers. It simplifies code structure with small, testable resolvers and supports EQL/Datomic patterns, though it lacks Pathom's query optimization.

Show HN: Learn by rebuilding Redis, Git, a database from scratch

169 acley 2026-07-11 14:38:28 UTC shipthatcode.com Full Share 43

Pick a system. Build it from scratch. Every lesson is choose → write → run, until it clicks. Each card opens a structured Fundamentals → Intermediate → Advanced track. Tap the > chevron to reveal all 37 languages. “You can’t cheat — you either solve the problem or you don’t. It’s the first platform where I actually understand what I’m writing.”

Why Write Code in 2026

49 zdw 2026-07-12 04:38:28 UTC softwaredoug.com Qwen Share 28

Building a software factory with AI agents demands human hands-on coding to ensure quality and architectural clarity, as writing code fosters ownership, precision, and proactive system improvement beyond automated processes.

How Doctors die. It’s not like the rest of us (2016)

159 downbad_ 2026-07-11 23:38:28 UTC archive.cancerworld.net Qwen Share 83

Doctors often reject aggressive end-of-life treatments for themselves, prioritizing comfort and dignity, yet they frequently administer such care to others due to patient/family pressure, systemic incentives, and fear of litigation, highlighting a stark contrast between medical practice and personal choice.