Cheah Chu Yeow is number 88 in the top 100 Rails contributors. He made 88 commits between 2007 and 2012.

Personally, I relate to Chu. Consider this documentation commit:

- Clearing the cache works in the exact same way as with Page Caching.
+ Clearing the cache works in a similar way to Page Caching, except you use the +expire_action+ instead of +expire_page+.

Fanatical precision in documentation is seriously one of the best things in the world. Chu has a lot of documentation commits where he kept the Rails docs comprehensible and accurate. But he’s also done bugfixes, code cleanup, and new feaures, like ensuring url_for(nil) falls back to url_for({}), making Hash#slice faster, and making sure that URL regexes cover all the options that the URL format permits. Detail-oriented commits like Chu’s are a big reason that Rails is able to live up to the high expectations that we all have of it. Big thanks to Chu for his hard work and his high standards!