A cozy command-line clubhouse for computer people. Chat, music, games, art, coding, and tech news. Connect with any SSH client!

Free Ink is an open-source collective building the software, firmware and hardware for e-paper readers — every layer ships in the open for anyone to pick up, extend and make their own.

退休满一年的NetNewsWire状态报告：2188次提交几乎全用于现代化与还技术债（Swift并发、解析器重写、Liquid Glass、降功耗），可观测性优先于新功能的工程取舍；自写crash符号化不接商业SDK；社区迁至Discourse。文末安利贡献者Stuart Breckenridge的浏览器版RSS阅读器Gobbler。

Homepage to the Srcery syntax theme: a syntax theme with clearly defined contrasting colors and a slightly earthy tone. Supports many editors, terminals and applications like Dracula/Nord.

A from-the-ground-up walkthrough of how modern LLMs work, from tokens to transformer blocks to the next-token loop.

Explore our hand-picked collection of out-of-copyright works, free for all to browse, download, and reuse. This is a living database with new images added every week.

Generate hands-on, multi-part technical tutorials on demand, with LLM skills tuned to make content approachable. Then you work through them yourself, by hand.

A web page that tells you what your browser gave away the moment you arrived. No login, no form, no permission. Most pages do this. None of them tell you.

腾讯文档-在线表格

A curated gallery of the most minimal, clean websites on the internet. No animations, no scroll jacking — just pure, simple web design inspiration. Updated weekly.

Learn mahjong in five minutes. A visual guide for total beginners — tiles, winning hands, wall mechanics, and turn actions.

Forester is a tool for scientific and mathematical hypertext authoring. It serves as your lab notebook, journal, blackboard, and lecture notes. Maintained by Jon Sterling and Kento Okura. Inspired by Zettelkasten and evergreen notes concepts.

Comprehensive collection of free mathematics resources covering general, number theory, algebra, analysis, geometry, topology, combinatorics, probability and more

A subscription service providing instant Linux VMs accessible via SSH. Features persistent disk, sudo access, automatic HTTPS, IAM authentication, and a built-in coding agent (Shelley). Create up to 25 VMs sharing resources (2 CPUs, 8GB RAM, 25GB disk).

A platform providing online services based on principles of freedom, privacy, federation and decentralization. Includes XMPP, email, cloud storage and more.

Free XMPP messaging service with public accounts, plus the gold-standard Android XMPP client with OMEMO encryption

Open-source XMPP client for iOS and macOS with OMEMO encryption, audio/video calls, and push notifications. Privacy like it’s 1999.