This package improves the performance of Emacs when viewing files with long lines. It is included as standard with Emacs 27 or later.

Discover adds context menus to commonly-used features in Emacs.

This package provides an Ansible documentation for GNU Emacs.

ansible-doc allows you to view the documentation of an Ansible module and ansible-doc-mode minor mode adds documentation lookup to YAML Mode. You could enable the mode with (add-hook 'yaml-mode-hook #'ansible-doc-mode).

This package can be used with multiple-cursors to provide an incremental search that moves all fake cursors in sync.

This package provides an Emacs interface to the PubMed database of references on life sciences.

This package provides vibrant color schemes with light and dark variants.

This package provides Keycast mode. Once enabled, that mode shows the current command and its key or mouse binding in the mode line, and updates them whenever another command is invoked.

This package allows moving the borders of the active window with the arrow keys. It prefers to move the right or bottom border when possible, and falls back to moving the left or top border otherwise.

This package provides a query interface for mu4e using Consult.

The Fantastic File Finder for Emacs. Find files fast, using helm.

mastodon.el is an Emacs client for Mastodon, the federated microblogging social network.

This Emacs package implements CSV mode, a major mode for editing records in a generalized CSV (character-separated values) format.

Starlit theme customizes your Emacs to be deep blue with bright colors from a starlit sky.

Inheritenv provides tools to execute processes inheriting the calling buffer's environment.

MMM Mode is a minor mode that allows multiple major modes to coexist in a single buffer.

Malyon is a Z-machine interpreter for playing text-based adventure games. Malyon plays version 3 (.z3), version 5 (.z5), and version 8 (.z8) z code files.

The corfu-doc package provides a way to display a documentation popup for completion candidates when using emacs-corfu. It can be regarded as emacs-company-quickhelp for emacs-corfu.

This package provides an Emacs interface to communicate with Jupyter kernels. It provides REPL and Org mode source code block frontends to Jupyter kernels and kernel interactions integrated with Emacs' built-in features.

Major mode for editing Gherkin (popularized by the Cucumber tool) user stories. Also known by the name cucumber.el.

Flx provides fuzzy matching for emacs a la sublime text. The sorting algorithm is a balance between word beginnings (abbreviation) and contiguous matches (substring). The longer the substring match, the higher it scores. This maps well to how we think about matching. Flx has support for ido (interactively do things) through flx-ido.

Liberime is an Emacs dynamic module provide librime bindings.

This library add support for SCGI URLs to Emacs. It is based on url.el, which is shipped with Emacs.

This package permits navigation of undo history in a temporary buffer, which is read-only save for undo commands, and subsequent committal of a chain of undo commands as a single edit in the undo history.

This package provides a global minor mode that changes how Emacs handles the lookup of applicable dir-locals files (.dir-locals.el): instead of starting at the directory of the visited file and moving up the directory tree only until a first dir-locals file is found, collect and apply all (!) dir-locals files found from the current directory up to the root one.

Values specified in files nearer to the current directory take precedence over values in files farther away from it.

You might want to use this to globally set dir-local variables that apply to all of your projects, then override or add variables on a per-project basis.