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This is a place where I share technical and fun stuff.

Featured

• Airflow Best Practices

  Updated: 12 Oct, 2025

  Airflow pitfalls, or essentially Python pitfalls

• An Interesting Experience Debugging Go API Performance

  5 Apr, 2025

  Unexpected and humorous results from investigation of high CPU usage of Go API.

Recent Posts

• Celebrating Solving 1000 Leetcode Questions

  25 Dec, 2025

  Ten years since first submission.

• Revisiting Authentication

  20 Dec, 2025

  OAuth, JSON Web Tokens, HTTPOnly Cookies and the best practices

• Enterprise Github Actions Runner In Kubernetes

  27 Nov, 2025

  Cannot possibly make it happen because of permission

• Upgrading My Battle Station To AMD 9800X3D(zh)

  17 Nov, 2025

  From AMD 5800X + MSI B550 + DDR4 memory.

• Building An Expression Evaluator Using CEL Go

  20 Oct, 2025

  Common Expression Language(CEL) Go basic usage, custom functions, etc.

• Publish To NPM

  5 Oct, 2025

  Publishing packages to public NPM registry tutorial