Spacemacs

Spacemacs is a configuration framework for GNU Emacs. It can take advantage of all of GNU Emacs' features, including both graphical and command-line user interfaces, and being executable under X Window System and within a Unix shell terminal. It is free and [open-source software] released under the GNU [General Public License|GPL-3.0-or-later] license.
Spacemacs consists mainly of configuration files, pre-defined internal commands, and configurations for various plug-ins. It features a novel mnemonic key binding design which attempts to improve ergonomics, a system for adding or excluding pre-configured features called 'layers', and includes verbose software documentation. It has three user-selectable input modes: Emacs mode, Vim mode, and Hybrid mode.
Spacemacs has a light and dark theme that are the fifth most downloaded emacs theme as of 2025 based on MELPA downloads.
, its repository on GitHub has been starred over 21,100 times and has over 11,300 commits.