Open Source Emacs-Lisp Libraries

Google Styleguide is a comprehensive collection of coding style guides created and maintained by Google to ensure consistency, readability, and maintainability across its vast array of software projects. These guides define best practices and conventions for writing code in multiple programming languages, from C++ and Python to JavaScript, Go, and Swift. By adhering to these standards, developers can more easily collaborate, review code, and maintain high-quality software across teams and open source contributions. Each guide covers a wide range of topics, including naming conventions, file organization, indentation, documentation, and usage of specific language features. The repository also provides supplementary resources such as an Emacs configuration file for Google’s C++ style and references to related guidelines like Effective Dart and Kotlin Style Guide.

Tomorrow Theme is a family of carefully balanced color schemes designed to provide consistent, readable syntax highlighting across editors, terminals, and code-hosting sites. The palette comes in multiple variants—Tomorrow (light) and several “Tomorrow Night” options like Bright, Blue, and Eighties—so developers can choose a tone that matches their environment without losing legibility. Each scheme defines a small, harmonious set of base and accent colors that map predictably to tokens such as keywords, strings, numbers, and comments, reducing visual noise while preserving structure. The project ships ports for a wide range of tools (from Vim and Emacs to Sublime Text, iTerm, and more) and documents the palette so others can create faithful ports. Its emphasis on restraint and consistency makes it a popular baseline for teams that want code to look familiar across machines and applications.

Helpful is an Emacs package that improves the standard help buffer by showing more contextual information. It is designed for users who read Emacs Lisp documentation, inspect functions, or explore how Emacs internals work. Compared with the built-in help system, it presents richer details for functions, variables, commands, keys, and symbols. Helpful tries to show source code when possible, making it easier to understand behavior without jumping through multiple commands. It also supports development-oriented workflows for people writing or debugging Emacs Lisp. The package is especially valuable for Emacs users who want documentation, source inspection, and navigation in one cleaner help experience.

async.el is a module for doing asynchronous processing in Emacs. Some async applications are provided as well with this package. You can install emacs-async package from MELPA using package.el. You can also install from sources, in this case you should install using make and make install to ensure emacs-async is installed in a standard load-path destination where other packages can find it easily when compiling.