neovim/neovim

Neovim is a text editing environment designed for extensibility and performance. It provides a core engine for text manipulation, multi-window management, and complex editing commands, while maintaining compatibility with existing paradigms. The project features a stable interface that allows external clients to interact with the application state, enabling the development of custom user interfaces and integrated tools.

The architecture decouples the core editing logic from the user interface through an asynchronous protocol. This system supports external rendering processes, including terminal-based and graphical frontends, by communicating grid updates, highlight states, and input events. Users can extend functionality through a scripting runtime that provides deep access to internal data structures, filesystem operations, and system processes, with support for both Lua and legacy scripting bridges.

The project includes comprehensive documentation for its extensibility APIs, language support, and interface architecture. It is available through standard package managers, pre-compiled binary archives, or via source code compilation, supported by a build system that manages dependencies and diagnostic tools.