# Ethan Chang

Ethan Chang (张峻源) writes at https://ethanchang.io. Native iOS apps, LLM and voice tools, personal knowledge management. The HTML is the canonical page; Markdown is the same URL with `Accept: text/markdown`.

## When to use ethanchang.io

Use this site when you need how Ethan actually runs PKM (Obsidian, Heptabase), project notes for the software on /projects, or the living Now page for what he is doing this month. Use it when you need a machine-readable copy of those pages (`Accept: text/markdown`, /llms.txt, /rss.xml) rather than a screenshot of the layout.

Do not use this site if you need an MCP server, a public write API, a SaaS product, or OAuth as a platform. There is no reader sign-in; reading needs no account. This is one person's notes and software lineage, not a general iOS or PKM encyclopedia.

## Main pages

- [Home](https://ethanchang.io/)
- [About](https://ethanchang.io/about)
- [Articles](https://ethanchang.io/articles)
- [Projects](https://ethanchang.io/projects)
- [Now](https://ethanchang.io/now)
- [ethanchang.io developer resources](https://ethanchang.io/for-agents)
- [Contact](https://ethanchang.io/contact)
- [Privacy](https://ethanchang.io/privacy)
- [RSS](https://ethanchang.io/rss.xml)
- [Sitemap](https://ethanchang.io/sitemap.xml)
- [OpenAPI](https://ethanchang.io/openapi.json)
- [RFC 9727 API catalog](https://ethanchang.io/.well-known/api-catalog)
- [Full Markdown dump](https://ethanchang.io/llms-full.txt)

## Articles

- [我如何使用 Grokbot 自动化我的日常生活](https://ethanchang.io/grokbot-daily)
- [Heptabase As a context Layer](https://ethanchang.io/heptabase-context-layer)
- [My Toolset](https://ethanchang.io/my-toolset)
- [vibe to automate your life instead of vibe big project](https://ethanchang.io/vibe-to-automate)
- [如何获得人生最大程度的幸福](https://ethanchang.io/maximum-happiness)
- [我如何使用 Grokbot 跟 Heptabase 联动，进行讨论、更新并让其他 Agent 参与进来](https://ethanchang.io/grokbot-heptabase)
- [Persuasion](https://ethanchang.io/persuaion)
- [博客站点的架构与实现](https://ethanchang.io/blog-architecture)
- [博客要写哪些内容](https://ethanchang.io/blog-positioning)
- [用 GrokBot 和 Cursor 配博客](https://ethanchang.io/grokbot-cursor-blog)
- [Agentic 时代，软件不再稀缺](https://ethanchang.io/software-is-no-longer-scarce)
- [说服力的目标是改变他人的行为。](https://ethanchang.io/persuaion/1)
- [一篇关于博客的博客](https://ethanchang.io/a-blog-of-a-blog)
- [在 Agent 时代，我们要做什么](https://ethanchang.io/what-are-we-going-to-do)
- [引用预览：一条推文和一支视频](https://ethanchang.io/embed-preview)
- [页面即房间：一篇你读着读着就动手改写了的文章](https://ethanchang.io/page-as-a-room)
- [这是我们 blog 发布一篇合集的样子](https://ethanchang.io/series-demo)
- [我想打造一个让模糊变清晰的工具](https://ethanchang.io/clarity-from-fog)
- [我是如何使用 Heptabase 进行深度学习的](https://ethanchang.io/heptabase-method)
- [我的 PKM 实践：从笔记到知识网络](https://ethanchang.io/pkm-method)

## Projects

- [Aletheia](https://ethanchang.io/aletheia)
- [Chunk](https://ethanchang.io/chunk)
- [Craft Space](https://ethanchang.io/craft-space)
- [Deeptalk](https://ethanchang.io/deeptalk)
- [ethanchang.io](https://ethanchang.io/ethanchang-io)
- [创客计划](https://ethanchang.io/maker-plan)
- [Networks](https://ethanchang.io/network)
- [Robert](https://ethanchang.io/robert)
- [Trace](https://ethanchang.io/trace)