Persistent Color Picker gives the default Mac OS X color panel its own window so you won’t lose it when you switch between apps. It also allows you to copy and paste color values formatted for HTML, CSS, Objective-C, or MacRuby code.
CocoaPods is the best way to manage library dependencies for iOS and OS X apps developed with Apple’s Xcode.
Fingertips’ Eloy started the CocoaPods project in late 2011. It has since been adopted and is now maintained by a larger community, becoming the de facto way to manage Xcode project dependencies. CocoaPods saves thousands of hours of precious development time for Objective-C developers all around the globe.
Kicker is a Mac OS X command line tool that can watch a directory for changes and then run any command or “recipe” written in Ruby.
You can for example use Kicker to automatically run tests every time you save your code, or to reload the frontmost browser window when you make a change to your design.
Miso is a unified API for basic image editing operations such as cropping and scaling. It comes with backends for Core Image, ImageMagick, and GraphicsMagick, and it’s pretty easy to add your own.
Broach is a Ruby implementation of the API for 37signal’s Campfire. It was designed for automated notifications such as those from a post-commit hook or a deploy script.
ObjectiveBacon is an Objective-C port of Christian Neukirchen’s Bacon which adds full NSRunLoop support. Currently in development, it will allow tests to be defined in Objective-C, MacRuby and Nu.
Use Authorization-San to specify access policies for your Rails controllers in a way that’s flexible yet clear, concise, and unambiguous.
Use Validation Sets to group ActiveRecord validations in sets. You can for example use a different set depending on the user’s role, or for various stages in the lifetime of a model.
Peiji-San provides for a thin pagination layer based on named scopes.