Simple web system for sharing EC2 access while the bill payer maintains control—team members can start instances via web interface with authentication.
Easy and cheap cluster building on AWS
Build cheap compute clusters on AWS using spot instances: automated system configuration, sshfs file transfer, and GNU parallel for job distribution.
An rm and git accident
一次rm误删文件后git reset --hard又覆盖未提交代码的血泪教训：紧急时刻先冷静思考再行动，日常使用trash-cli替代原生rm命令避免灾难性后果。
Automatic Email Notification on Github Pushes
A simple PHP script to send automatic email notifications when someone pushes to your GitHub project, using GitHub's post-receive web hooks with JSON payload parsing.
Sending Emails from Cygwin
Quick tutorial on configuring exim and email packages in Cygwin to send emails from Windows command line via SMTP server without authentication.