I made a simple gem for displaying app usage stats.

Some notes about working with large images in a Rails app.

I just wrote a quick how-to about manual cropping with Paperclip, specifically, how to make manual cropping and automatic thumbnailing play nice.

Write rake tasks that grep your application code for common problems.

Testing Your Code's Text

A sanitizer for Rails that escapes unauthorized and unclosed tags, stopping (clueless|malicious) users dead in their tracks. Read more, including source code »