Ghostty

Ghostty is an open-source terminal emulator that combines GPU-accelerated rendering with a native user interface for each platform.

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Ghostty is a terminal emulator created by Mitchell Hashimoto, a co-founder of HashiCorp, and released to the public in 2024. It runs on macOS and Linux, drawing the screen on the GPU for fast display while using each operating system's native windows and menus.

Its core terminal functionality is split out into a library called libghostty, which other apps can build on to create their own terminals.

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cmux is built on libghostty, the library behind the GPU-accelerated Ghostty terminal, and written in native Swift and AppKit rather than Electron.


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