> For the complete documentation index, see [llms.txt](https://portfolio.johann.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://portfolio.johann.tw/johanns-portfolio.md).

# Johann's Portfolio

## Profiles

[Codeforces](https://codeforces.com/profile/changyuheng)

[GitHub](https://github.com/mrjohannchang)

[LeetCode](https://leetcode.com/mrjohannchang/)

[LinkedIn](https://www.linkedin.com/in/mrjohannchang)

[Project Euler](https://projecteuler.net/progress=changyuheng)

## Personal Sites

[Johann Chang's Blog](https://blog.johann.tw/) - Software engineering related things

[約翰配方](https://recipe.johann.tw/) - 我對生活事務的觀察和整理