HTTP POST requests and responses, as well as most other HTTP-level data.
backup.ab, *.ab, *.adb, and similarly named files produced by adb shell bu backup, adb backup, bmgr, and similar tools.
A bunch of stuff in Nixpkgs and NixOS
Nixpkgs (also this link) is a package collection for the Nix package manager. NixOS is a GNU/Linux distribution based on Nix and Nixpkgs.
See the list of contributions at GitHub and another list of contributions at GitHub to now deprecated repository (before NixOS became a part of Nixpkgs). Before Nixpkgs and NixOS moved to GitHub I was contributing patches to the mailing list (archived at https://nixos.org/nix-dev/). The very first contribution there is the message with Message-Id: <20120626165234.1f9f3f04b630fabf52438a54@oxij.org> and Date: Tue, 26 Jun 2012 16:52:34 +0400 (archived at https://nixos.org/nix-dev/2012-June/009215.html).
SLNOS which a fork of Nixpkgs/NixOS that tries to adhere to the KISS principle. In particular, uses s6 instead of systemd. Uses some of the software made by the Suckless.org.
libcardiacarrest which is a trivial implementation of libpulse* PulseAudio library API that unconditionally (but gracefully) fails to connect to the PulseAudio daemon and does nothing else. I’m the original author of this project.
slim-ng which is a maintained continuation of the original SLiM login manager (aka display manager).
My fork of PyTox which is a maintained continuation of the original PyTox library, which is a library providing Python bindings for c-toxcore.
org-mode for GNU Emacs which is a Emacs mode for keeping notes, maintaining TODO lists, planning projects, authoring documents, clocking time spend doing things, gathering statistics, etc.
Basically, as a file format, org-mode files are Markdown on steroids. Emacs’ org-mode major mode is a monumental piece of software that, among other things, allows to structurally edit and to programmatically extract information from org-mode files (e.g., “show me all the things in my org-mode files marked as TODO scheduled for today”).
notmuch and its mode for GNU Emacs which is global-search and tag-based email system.
For the list of contributions you’ll have to search the mailing list.
c-toxcore which in a C implementation of the Tox instant messaging protocol.
See the list of contributions at GitHub. See also PyTox above.
git-hub which is a sane command-line interface for GitHub.
See the list of contributions at GitHub.