It's Magit! A Git Porcelain inside Emacs.

A use-package declaration for simplifying your .emacs

A template system for Emacs

Recipes and build machinery for the biggest Emacs package repo

On the fly syntax checking for GNU Emacs

Ivy - a generic completion frontend for Emacs, Swiper - isearch with an overview, and more. Oh, man!

Modular in-buffer completion framework for Emacs

Emacs package that displays available keybindings in popup

A modern list library for Emacs

Transient commands

Build and install your Emacs Lisp packages on-the-fly directly from source

Highlight TODO keywords

Emacs interface to Google Translate

Show vertical lines to guide indentation

Emacs major modes for Git configuration files

Browse target page on github/bitbucket from emacs buffers

emacs event log (WIP)

Slime-style navigation of Emacs Lisp source with M-. & M-,

Magical syntax highlighting for LaTeX-mode buffers

Emacs interface for GNU Guix package manager

For when 'C-y M-y M-y M-y' gets you down

ido/ivy/helm imenu tag selection across buffers with the same mode/project etc

Stucture and Interpretation of Computer Progams in info format

Buffer interface library for Emacs

Configurable custom themes for GNU Emacs

Edit regions in separate buffers

Move to the beginning/end of line, code or comment

mentor is a GNU Emacs frontend for the rTorrent bittorrent client.

Enhanced shell completion in Emacs

Search, vote for and download AUR packages from Emacs