AUCTeX is a comprehensive customizable integrated environment for writing input files for TeX, LaTeX, ConTeXt, Texinfo, and docTeX using Emacs or XEmacs.

Emacs Slime Volleyball is a volleyball game. Win points by making the ball land on your opponent's side of the court. The first player to five points wins! You can play against a friend, or challenge the three computer opponents in one player mode. You can even train opponent slimes.

This package implements bindings for LibYAML to be able to parse YAML files in Elisp.

A bleak theme. Uses shades of gray and the occasional splash of color. Designed for 256-color terminals. Comes in light and dark!

Deft is an Emacs mode for quickly browsing, filtering, and editing directories of plain text notes, inspired by Notational Velocity.

This package provides Emacs Lisp utilities for a variety of tasks, including version control, task management, and regex-based replacement.

This package lets you efficiently navigate, edit and execute code split into cells according to certain magic comments.

Sphinx Doc is an Emacs minor mode for inserting docstring skeletons for Python functions and methods. The structure of the docstring is as per the equirement of the Sphinx documentation generator.

This package provides font lock and beginning- and end-of-defun functions for Vimscript files.

Irony-mode provides Clang-assisted syntax checking and completion for C, C++, and ObjC in GNU Emacs. Using libclang it can provide syntax checking and autocompletion on compiler level which is very resistant against false positives. It also integrates well with other packages like eldoc-mode and especially company-mode as described on the homepage.

For speed reading, or just more enjoyable reading. Narrows the buffer to show one word at a time. Adjust speed / pause as needed.

Polymode is an Emacs package that offers generic support for multiple major modes inside a single Emacs buffer. It is lightweight, object oriented and highly extensible. Creating a new polymode typically takes only a few lines of code. Polymode also provides extensible facilities for external literate programming tools for exporting, weaving and tangling.

Sorcery is a dark and low-contrast Emacs theme inspired by Apprentice and Sourcerer.

Manage your contacts from Org mode. You can auto complete email addresses, export contacts to a vCard file, put birthdays in your Org Agenda, and more.

robot-log is an Emacs major mode that allows more easily viewing and navigating RobotFramework debug log files. It provides syntax highlighting and convenient shortcuts to move from one keyword to the next, or locate errors.

Just call one of the interactive functions in a file to complete the corresponding thing using Ivy.

The following completions are currently available:

• Symbol completion for Elisp, Common Lisp, Python, Clojure, C, C++.

• Describe functions for Elisp: function, variable, library, command,

• bindings, theme.

• Navigation functions: imenu, ace-line, semantic, outline.

• Git utilities: git-files, git-grep, git-log, git-stash, git-checkout.

• Grep utilities: grep, ag, pt, recoll, ack, rg.

• System utilities: process list, rhythmbox, linux-app.

• Many more.

Tup mode provides syntax highlighting for all of the elements of tupfiles, such as rule definitions, user-defined variables, macros, flags, bin variables, and so on. The mode also allows you to execute Tup commands.

This package provides completion in Python buffers and also helps find the locations of docstrings, arguments, and functions.

This package builds on the Helm interface to provide several commands for search-based navigation of buffers.

cort is a lightweight Emacs Lisp unit test library.

Emacs extension for Habitica, a RPG style habit tracker and todo list.

This is an Emacs mode for editing, debugging and developing Haskell programs.

This program provides an Emacs client for Redmine.

emacs-google-c-style provides an Emacs settings file for Google C and C++ style.