2025-08-23

36 篇热帖

1. Waymo granted permit to begin testing in New York City (www.cnbc.com)

Waymo is getting one step closer to starting its engine in New York City.

2. U.S. government takes 10% stake in Intel (www.cnbc.com)

Commerce Secretary Howard Lutnick said that the U.S. government has taken a 10% stake in chipmaker Intel.

5. Computer fraud laws used to prosecute leaking air crash footage to CNN (www.techdirt.com)

Earlier this year, an Army helicopter collided with a passenger plane over the Potomac River in Washington, DC. All sixty-seven people aboard both vehicles were killed. While the FAA focused its investigation on the failures that led to this mid-air collision, local investigators in Virginia were somehow far more concerned about identifying who had leaked…

6. Bluesky Goes Dark in Mississippi over Age Verification Law (www.wired.com)

Bluesky has chosen to block access in the state rather than risk potential fines of up to $10,000 per violation.

7. I made a floppy disk from scratch (kottke.org)

Polymatt decided he was going to make a 3.5” floppy disk from scratch — and actually did.

I’m not sure how many of you have actually cracked one of thes

8. Leaving Gmail for Mailbox.org (giuliomagnifico.blog)

This was a tough decision, having used Gmail since 2007/2008. However, I had to draw the line and stop giving Google my data for free. The problem with email is …

9. Developer's block (underlap.org)

A blog on software development and other stuff

10. Show HN: JavaScript-free (X)HTML Includes (github.com)

XSL Rendering Example. Contribute to Evidlo/xsl-website development by creating an account on GitHub.

11. The US Department of Agriculture Bans Support for Renewables (insideclimatenews.org)

The agency said it’s concerned that farmland is being consumed by wind and solar facilities—which occupy a tiny fraction of the country’s productive acres.

12. The First Media over QUIC CDN: Cloudflare (moq.dev)

Cloudflare 推出首个基于 QUIC 的媒体 CDN

Cloudflare 已正式发布其 Media over QUIC (MoQ) CDN 产品。这是一个技术预览版,用户可以在其全球任播网络上免费测试 MoQ 协议。

MoQ 是一项新兴标准,旨在成为统一的实时媒体传输协议,以取代现有的 WebRTC、HLS/DASH 以及 RTMP/SRT 等方案。

当前可用功能

  • 公共测试端点:Cloudflare 提供了一个公共中继服务器 (relay.cloudflare.mediaoverquic.com) 用于测试。
  • 客户端支持:用户可以使用多个客户端库连接,包括作者的 @moq JavaScript 库、Meta 的 moxygen 等。
  • Web 组件 API:提供了用于在浏览器中发布观看直播的 Web 组件示例代码。发布方使用摄像头,观看方通过唯一的路径名订阅。
  • AI 字幕(实验性):作者展示了在浏览器端利用 Silero-VAD、Whisper 和 WebGPU 实时生成字幕并通过 MoQ 传输的实验性功能。
  • Rust 库支持:提供了 Rust 库,支持导入 MP4 文件、通过 ffmpeg 管道传输媒体,以及使用 GStreamer 发布/观看。
  • 自托管选项:用户可以自行运行 moq-relay,作者还提供了用于构建“全球”CDN 的 Terraform 模块。

当前限制(预览版)

  • 仅支持草案子集:当前实现仅支持 draft-ietf-moq-transport-07 的一个有限子集。
  • 无认证机制:需要使用不易猜测的名称来区分不同的直播。
  • 无 ANNOUNCE 支持:无法用于需要发现直播开始/停止的场景(如作者的会议示例)。
  • 不支持 Safari:因 WebTransport 在 Safari 中尚未完全支持。
  • 未优化性能:用户体验将在未来得到改善。
  • 已知问题:由于基于作者代码的分支,可能存在错误。

重要性与意义

作者强调,Cloudflare 的行动具有重大意义。它跳过了等待完整的 RFC 发布,而是先行部署了一个可用于实际测试的产品。这种“先构建,再标准化”的做法,与 QUIC 的成功路径(先有大量生产数据,后形成标准)类似,被认为对 MoQ 标准的健康发展至关重要。这为其他提供商(如 Google、Akamai)树立了榜样,鼓励它们基于现有代码进行实践和学习,以指导协议的最终设计。

作者项目与推广

作者借机推广了其个人项目 hang.live,这是一个基于 MoQ 构建的示例应用。文末还分享了更高级的 JavaScript/TypeScript API 示例,用于实现更复杂的交互,如获取视频帧或进行物体检测,展现了 MoQ 的潜力。作者也提及了对 JavaScript 生态的幽默抱怨,并对 TypeScript 表示了赞赏。

13. I'm too dumb for Zig's new IO interface (www.openmymind.net)

Karl Seguin's Blog - A mix of coding and creative writing

14. Texas Instruments’ new plants where Apple will make iPhone chips (www.cnbc.com)

Apple committed to making iPhone chips at Texas Instruments' new U.S. factories. CNBC got an exclusive first look inside TI's $60 billion megaproject.

15. Busy beaver hunters reach numbers that overwhelm ordinary math (www.quantamagazine.org)

The quest to find the longest-running simple computer program has identified a new champion. It’s physically impossible to write out the numbers involved using standard mathematical notation.

17. Trees on city streets cope with drought by drinking from leaky pipes (www.newscientist.com)

Urban trees lining streets fare better in dry spells than those in parks – now it seems that leaky water pipes are the reason for their endurance

19. XSLT removal will break multiple government and regulatory sites (github.com)

What is the issue with the HTML Standard? One of the issues we've seen in #11523 and #11563 is that the proposal to remove XSLT from the spec doesn't acknowledge existing use cases beyond Chrome Status counter stats. According to Chrome'...

20. Nitro: A tiny but flexible init system and process supervisor (git.vuxu.org)

Anubis:反爬虫保护系统概述

Anubis 是一个网站管理员设置的反爬虫系统,旨在保护服务器免受 AI 公司大规模爬虫的侵害,这类爬虫行为可能导致网站停机,使资源无法被所有人访问。该系统通过引入工作量证明(Proof-of-Work)机制,类似于 Hashcash 方案,来增加爬虫的成本。在个体用户层面,额外负载可忽略不计;但在大规模爬虫场景下,累积负载会使爬虫变得昂贵。

Anubis 被描述为一个临时解决方案,目的是为开发更高级的指纹识别和无头浏览器检测技术争取时间(例如通过字体渲染识别),从而避免向合法用户展示工作量证明页面。系统依赖现代 JavaScript 功能,但插件如 JShelter 会禁用这些功能,因此用户需禁用此类插件以正常访问网站。

22. Writing Speed-of-Light Flash Attention for 5090 in CUDA C++ (gau-nernst.github.io)

In this post, I will walkthrough how I learned to implement Flash Attention for 5090 in CUDA C++. The main objective is to learn writing attention in CUDA C++, since many features are not available in Triton, such as MXFP8 / NVFP4 MMA for sm120. I also feel this is a natural next step after learning about matmul kernels. Lastly, there are many excellent blogposts on writing fast matmul kernels, but there is none for attention. So I want to take this chance to write up something nicely.

23. Measuring the environmental impact of AI inference (arstechnica.com)

The company claims that a text query now burns the equivalent of 9 seconds of TV.

24. Sprinkling self-doubt on ChatGPT (justin.searls.co)

I replaced my ChatGPT personalization settings with this prompt a few weeks ago and promptly forgot about it:

Be extraordinarily skeptical of your own…

25. Manim: Animation engine for explanatory math videos (github.com)

Animation engine for explanatory math videos. Contribute to 3b1b/manim development by creating an account on GitHub.

26. Popular Japanese smartphone games have introduced external payment systems (english.kyodonews.net)

Nearly 70 percent of popular Japanese smartphone games have introduced external payment systems for items and services to avoid hefty commission fees from U.S. tech giants Google LLC and Apple Inc., a Kyodo News tally showed.

27. Our Response to Mississippi's Age Assurance Law (bsky.social)

A new Mississippi law requires us to block full access to Bluesky unless all users complete age checks. We have concerns about this law’s implementation.

28. Scientists just found a protein that reverses brain aging in mice (www.sciencedaily.com)

Scientists at UCSF have uncovered a surprising culprit behind brain aging: a protein called FTL1. In mice, too much FTL1 caused memory loss, weaker brain connections, and sluggish cells. But when researchers blocked it, the animals regained youthful brain function and sharp memory. The discovery suggests that one protein could be the master switch for aging in the brain — and targeting it may one day allow us to actually reverse cognitive decline, not just slow it down.

29. Should the web platform adopt XSLT 3.0? (github.com)

What is the issue with the HTML Standard? Background This is a follow-up to #11523. That issue raises concerns regarding security issues, code maintainability, and the complexity of aging browser code currently used for rendering XML wit...

30. Rethinking the Linux cloud stack for confidential VMs (lwn.net)

There is an inherent limit to the privacy of the public cloud. While Linux can isolate virtual [...]

31. From $479 to $2,800 a month for ACA health insurance next year (www.npr.org)

Raiding retirement savings. Pondering job changes or even marriage. People who buy their own health insurance are strategizing ahead of major price hikes in 2026. Open enrollment starts Nov. 1.

34. SpaCy: Industrial-Strength Natural Language Processing (NLP) in Python (github.com)

💫 Industrial-strength Natural Language Processing (NLP) in Python - explosion/spaCy

35. Japan city drafts ordinance to cap smartphone use at 2 hours per day (english.kyodonews.net)

A central Japan city said Thursday it will seek to pass an ordinance recommending all residents limit smartphone use to two hours a day outside of work and school amid concerns over the impact of excessive technology exposure, though there will be no penalties proposed.

36. Google did not unilaterally decide to kill XSLT (meyerweb.com)

The Web Discourse has been spicy of late, and XSLT is to blame. Well, sort of. It’s complicated.