Features

A modern terminal built for speed and simplicity

⚡

Metal GPU Rendering

Every glyph is rendered via Metal instanced draw calls directly on your GPU. Smooth scrolling and crisp text at any resolution.

📷

Triple Buffering

Three-frame pipeline synchronized to your display's refresh rate via CADisplayLink. No tearing, no dropped frames.

🔗

URL Detection

Clickable URLs are automatically detected in terminal output. Cmd-click to open links directly in your browser.

⚙

Hot-Reload Config

Ghostty-style key = value configuration file. Edit and save — changes apply instantly, no restart needed.

🎨

Built-in Themes

Ships with 9 carefully crafted color themes. Full 256-color and true-color support with premultiplied alpha blending.

🛠

Native macOS

Built with SwiftUI for native window management, tabs, and system integration. Feels right at home on macOS.

How It Works

From keypress to pixel — the rendering pipeline

VT Parsing

Input bytes are decoded through a state-machine VT100/ANSI parser. Escape sequences, SGR attributes, and UTF-8 are handled in a single pass.

Glyph Atlas

Glyphs are rasterized once and cached in a GPU texture atlas. Font lookups use CoreText with fallback chains for full Unicode coverage.

Metal Draw

Visible cells are batched into instanced draw calls on a Metal render pipeline. Pixel-aligned with floor() to eliminate subpixel gaps.

Component	Technology	Detail
Rendering	Metal	Instanced draw calls with premultiplied alpha
Frame Sync	CADisplayLink	Triple-buffered with DispatchSemaphore
UI Framework	SwiftUI	NSViewRepresentable bridge for MetalView
Terminal	VT100/ANSI	State-machine parser with full SGR support
Font	CoreText	GPU texture atlas with glyph caching
PTY	POSIX forkpty	Native pseudo-terminal with environment passthrough

Keybindings

Familiar shortcuts, fully configurable

New Tab Cmd + T

Close Tab Cmd + W

Next Tab Ctrl + Tab

Previous Tab Ctrl + Shift + Tab

Copy Cmd + C

Paste Cmd + V

Increase Font Size Cmd + =

Decrease Font Size Cmd + -

Installation

Get started in seconds

⬇ Download

Grab the latest .dmg from GitHub Releases. Drag to Applications and launch.

Download Latest

🛠 Build from Source

Requires Xcode and macOS 15+.

git clone https://github.com/Airead/TongYou.git
cd TongYou
make build-release
make install

Terminal, Accelerated