In Emacs, Everything Looks Like a Service

Emacs functions like an operating system by orchestrating applications and services above the OS kernel level, allowing users to build client applications within it that access system services and run external programs. The article explains how Emacs provides built-in libraries for implementing the three key components of client-server models: user interface, client communication, and local data management. Because Emacs can treat command-line utilities as reusable services through its Elisp programming language, users can accomplish most computing tasks directly within Emacs without leaving the environment.