2025-08-03

17 篇热帖

1. Telo MT1 (www.telotrucks.com) 428 points | 398 comments | by turtleyacht

Say hello to TELO, the all-electric mini truck. Designed from the ground up for efficiency and practicality.

2. Automerge 3.0 (automerge.org) 238 points | 18 comments | by surprisetalk

Automerge 3.0 发布公告

主要更新

  • 内存使用大幅减少：在处理具有长历史文档时，内存使用减少超过10倍，例如将《白鲸》粘贴到文档中，从Automerge 2的700MB内存消耗降至Automerge 3的1.3MB。
  • 加载时间显著加快：对于大历史文档，加载速度大幅提升，如之前需要17小时的文档现在只需9秒。
  • 其他改进：清理了冗余API，特别针对文本字符串处理进行了优化。

API 变化

  • 文本处理API简化：
    • 移除了旧的Text类。
    • 将实验性next API设为默认行为，使用原生字符串表示协作文本。
    • 重命名RawString为ImmutableString，用于表示非协作字符串（即无法合并编辑的文本）。

兼容性与升级建议

  • 文件格式兼容：Automerge 3.0使用与Automerge 2相同的文件格式。
  • API向后兼容：API几乎完全向后兼容，建议现有用户升级。
  • 新用户机会：新用户可以考虑尝试Automerge，因性能和可靠性已显著提升。
  • 安装方式：通过@automerge/automerge-repo或@automerge/react的最新版本（如2.1.0）默认使用Automerge 3.0；现有用户可能只需更新依赖版本。

技术细节

  • 内存优化原理：重新架构库，在运行时使用压缩列格式表示历史数据，而非之前未压缩的格式，大幅减少内存占用。
  • 应用范围：改进不仅适用于客户端设备（避免高内存使用），也适用于同步服务器，使其能更可靠地处理多个大文档并支持更快加载。

开始使用与支持

  • 新用户：可查看教程快速上手。
  • 现有用户：参考迁移指南，可能只需更新版本号或进行少量调整。
  • 问题反馈：可通过GitHub创建issue或加入Discord获取帮助。
3. I tried to replace myself with ChatGPT in my English class (lithub.com) 237 points | 224 comments | by lapcat

My students call it “Chat,” a cute nickname they all seem to have agreed on at some point. They use it to make study guides, interpret essay prompts, and register for classes, turning it loose on t…

5. Tokens are getting more expensive (ethanding.substack.com) 227 points | 162 comments | by admp

"language models will get cheaper by 10x" will not save ai subscriptions from the short squeeze

6. Lina Khan points to Figma IPO as vindication of M&A scrutiny (techcrunch.com) 223 points | 200 comments | by bingden

A surprising figure is celebrating Figma’s successful IPO: Lina Khan, former chair of the Federal Trade Commission, who said the offering demonstrates the value of "letting startups grow into independently successful businesses."

7. Twenty Eighth International Obfuscated C Code Contest (www.ioccc.org) 186 points | 51 comments | by mdl_principle

IOCCC Year 2024

8. If you're remote, ramble (stephango.com) 155 points | 96 comments | by lawgimenez

A lightweight way to add ambient social cohesion for remote teams.

9. HTML-in-Canvas (github.com) 154 points | 88 comments | by dannyobrien

Contribute to WICG/html-in-canvas development by creating an account on GitHub.

11. AWS deleted my 10-year account and all data without warning (www.seuros.com) 144 points | 90 comments | by seuros

After 10 years as an AWS customer and open-source contributor, they deleted my account and all data with zero warning. Here's how AWS's 'verification' process became a digital execution, and why you should never trust cloud providers with your only copy of anything.

12. Browser extension and local backend that automatically archives YouTube videos (github.com) 133 points | 63 comments | by fcpguru

browser plugin to send youtube, insta (all social videos) to local backend and process audio and video in all sorts of ways. - andrewarrow/starchive

13. A Real PowerBook: The Macintosh Application Environment on a Pa-RISC Laptop (oldvcr.blogspot.com) 130 points | 23 comments | by todsacerdoti

I like the Power ISA very much, but there's nothing architecturally obvious to say that the next natural step from the Motorola 68000 family...

16. Got tired of bad PDF WebApp so we made a Free, Open-Sourced, Private Alternative (luxpdf.com) 103 points | 41 comments | by PseudoComputer

LuxPDF is an Open-Source, Privacy-Focused Alternative to popular PDF WebApps. We offer 30+ Tools. All Free, No Ads, No Registration Needed, With Unlimited Usage