- am the author of Endless Parentheses;
- help manage and develop CIDER, the most widely used Clojure IDE;
- help develop GNU Emacs when I have time;
author and manage a number of open source projects, among which:
- Paradox: Modernized Package Menu for Emacs.
- sx.el: Full-feature Emacs client for StackOverflow, Super User, and the entire Stack Exchange network.
- aggressive-indent-mode: Minor mode that keeps your code permanently indented.
- smart-mode-line: A powerful and beautiful mode-line for Emacs.
- The Bug-Hunter: Hunt down errors in elisp files.
- names: A namespace system for elisp.