Software

➟ vim-sexp (2012−present, VimScript)

S-expression editing plugin for Vim.
Features:
- Carefully crafted text motions that allow standard Vim operations on Lisp forms.
- Balanced bracket insertion and deletion.
- List manipulation commands from Emacs's paredit.
- Excellent Clojure compatibility.

➟ vim-clojure-static (2012−present, VimScript, Clojure)

Official Vim filetype plugin for the Clojure language since Feb/2013
Originally extracted from Meikel Brandmeyer's VimClojure project
Features:
- Major improvements to syntax highlighting and indentation.
- Machine generation of significant portions of the syntax definitions and builtin completions.
- Extensive regular expression syntax highlighting.
- Configurable indentation and extensible syntax highlighting.

➟ haus (2009–present)

Personal programs, libraries, configuration, and documentation.
Dotfile installation:
10+ years of bash and readline customization:
- bashrc: Shell initialization entry point
- functions.bash: Helper functions for defining aliases, functions, and completions
- path.bash: Prunes and exports PATH environment variable
- options.bash: Sets interesting POSIX and bash shell options
- prompts.bash: Defines attractive and usable values for PS1, PS2, PS4, and PROMPT_COMMAND
- env.bash: Exports useful environment variables
- interactive.bash: Aliases, functions, and completions
- inputrc: Readline bindings for bash, irb/pry, psql, and more
- inputrc.d/utf-8: Bindings to UTF-8 characters for readline, vim, mutt, and weechat

➟ xterm-color-table (2011–present, VimScript)

Vim scratch buffer for perusing and yanking the 256 xterm color palette with RGB equivalents.

➟ JellyX (2011–present, VimScript, Ruby)

Personal Vim colorscheme. A combination of Xoria256 and Jellybeans.

➟ mbwatch (2013–2014, Clojure)

An interactive console IMAP client utilizing mbsync.

➟ optparse-clj (2013, Clojure, ClojureScript)

Functional GNU-style command line options parser, merged into tools.cli.

➟ editserver (2011–2012, Ruby)

Edit any text field on OS X in your favorite editor! Implemented as a local HTTP Ruby web service + AppleScript.

➟ example-forking-daemon (2011, C)

Example UNIX daemon in C that forks worker processes. Written as an instructive document for a mailing list discussion.

➟ html2email (2010, Ruby)

Ruby HTML email templating engine built on Tilt and Premailer.

Contributions

➟ Slamhound (Clojure, 2013–2016)

Pull requests and discussions with Phil Hagelberg.
Top contributor to the project.
Screencast:

➟ tools.cli (2013–2015, Clojure, ClojureScript)

Official Clojure library for handling command line options.
Merged optparse-clj in v0.3.0.
Official maintainer from Dec/2013 - Jul/2015.

➟ lein-bin (2013, Clojure)

Support profile target-paths.

➟ feh (2013–2016, C)

Enable navigation of images by directory.
Add an option that sorts by file modification time.

➟ NrrwRgn (2011, VimScript)

Catch errors when accessing local options.

➟ bash (2012)

Bug report and workaround for subtle incorrect behavior during completion.

➟ regbuf.vim (2011, VimScript)

Set default yank register to "+ or "* if &clipboard has unnamedplus or unnamed.

➟ Vim (2011–2016, C)

Bugfixes and features:
- [PATCH] Fix backwards search from multibyte character (7.3.779)
- [PATCH] Properly restore cursor state after indentexpr evaluation (7.3.812)
- [PATCH] Fix forward searching with the SEARCH_START flag (7.3.877)
- [PATCH] Make 'lispwords' a global-local option (7.4.201)
- [PATCH] Convert 'formatprg' to a global-local option (8.0.0179)
Add vim-clojure-static as the official Clojure filetype plugin:
- [PATCH] Add runtime files for the Clojure programming language (2013)

➟ imagez (2013, Clojure)

Add components-a?rgb with tests.

➟ Gifiscle (2013, C)

Add an option to set a default frame delay when viewing animated GIFs.

➟ pass (2012, bash)

Fix improper escaping of backslashes in passwords.

➟ vimium (2012, CoffeeScript)

Fix regression in shuffleHints().

➟ UltiSnips (2011–2013, Python, VimScript)

Fix a comparison between incompatible types.
Evaluate word boundaries with Vim's syntax engine to fix snippet expansion in Lisps.

➟ CTAGS Highlighting (2011, Python, VimScript)

Allow customisation of the filenames used for tags and types files.

➟ vim-unimpaired (2011, VimScript)

Support new Vim feature `set clipboard=unnamedplus`.

➟ vim-surround (2011, VimScript)

Support new Vim feature `set clipboard=unnamedplus`.

➟ vim-preview (2011, Ruby)

Properly reap subprocesses to prevent zombies.

➟ Command-T (2010–2012, Ruby)

Fix a couple of edge-cases related to non-default values of 'synmaxcol' and 'timeout'.

➟ Typus (2010, Ruby)

Multiple improvements to typus, a clean and customizable Ruby on Rails admin panel.

➟ yard (2012, Ruby)

Return exception messages body as Array in RackAdapter.

➟ vim-fugitive (2012, VimScript)

Support more git index locations.
Fix broken function call.

➟ leiningen (2012, sh)

Replace `whoami` with `id -u` test.

➟ vim-orgmode (2012, VimScript)

Fix type in Plug mapping.

➟ screen.vim (2011–2012, VimScript)

Make tmux pane handling more reliable.
Fix visual selection extraction in ScreenSend().

➟ delayed_paperclip (2011, Ruby)

Fix an unintended interaction between Paperclip and delayed_job.

➟ delayed_job (2010–2012, Ruby)

Fork of delayed_job that implements a forking process model for long-lived Rails workers.

➟ net-scp (2010, Ruby)

Three patches to fix insecure escaping of filenames: [1] [2] [3].

Discussions

A deep dive [1] [2] with Joel Holdbrooks into Pattern.java and the Vim regular expression engine to produce the best regular expression highlighting of any editor! (2013)
Large pull request to Slamhound, overhauling a core component of the library. (2013)
Discussion and proposed patches to fix broken password quoting in mbsync, featuring the IMAP4 RFC. (2013)
Discussion on UNIX daemons on the delayed_job mailing list. (2010)
An explanation of shell expansion and command sanitization. (2010)