iTunes at your fingertips
Control iTunes from any application using hot keys, an always-available global menu, or attractive, unobtrusive buttons in your menu bar. Get instant feedback with transparent overlay windows. Enjoy "scrobbling" integration with last.fm and cover art downloads from amazon.com.
Speed-of-thought file navigation for Vim
Find files with only a few keystrokes, even in large projects. The scoring algorithm has been especially tuned for file paths (for example, matching characters that appear after a path separator are given more weight) to give intuitive results. Written in C for speed.
Object-oriented template system
Batch-compile templates down to Ruby code using the convenient
walrus command-line tool. Keep repetition to a minimum by re-using sections in an Object-Oriented fashion. Add custom behavior using Ruby methods. Target multiple output formats from a single set of source templates.
Dynamic packrat parser generator (in Ruby)
Use a simple DSL to define lexers, "packrat" (memoizing) parsers, and Abstract Syntax Tree builders at runtime. The generated parsers support all standard PEG (Parsing Expression Grammar) constructs (ordered choice, concatenation, repetition, predicates), as well as some things that are not usually possible with a PEG, such as left-recursive rules. Arbitrarily complex grammars are possible, including parsers for things like "island" grammars, "here" documents, nested comments and include files.
Wincent Icon Utility
Set up custom folder icons in seconds
wincent-icon-util command line tool for Mac OS X 10.6 Snow Leopard enables you to take standard
.icns files and apply them to a directory as a custom folder icon. It's easy to use and easy to set up; it can be integrated into your build process in less than a minute.
Transparent local clipboard access for tmux everywhere
Clipper is an OS X "launch agent" that runs in the background providing a service that exposes the local clipboard to tmux sessions and other processes running both locally and remotely.
Fast wikitext-to-HTML translator
Written in close-to-the-metal C, the Wikitext gem is a Ruby extension consisting of a lightning-quick Ragel-generated lexer and a hand-coded parser. Built with robustness, performance, security, and ease-of-use in mind, this is a solid markup translator upon which to build your web application.