The Reality

Why Your Terminal Choice Matters for AI Coding

AI coding tools have changed the developer workflow. Instead of writing code line by line, you describe intent and review output. A single Claude Code session can produce hundreds of file edits and thousands of diff lines. GitHub Copilot streams suggestions in real time. Aider rewrites entire modules.

This volume of output exposes terminal weaknesses that never mattered before. CPU-rendered terminals stutter. Unoptimized scrollback buffers choke. Missing diff tools force you to context-switch out of the terminal to review changes. And configuration overhead steals time you should spend coding.

The right terminal setup eliminates these friction points. It renders fast, ships with the tools AI workflows depend on, and gets out of your way.

Why arb

What arb Brings to AI Coding Workflows

arb is a macOS terminal emulator built specifically for AI-heavy development. Every design decision targets the needs of developers who spend their day working with AI coding assistants.

G

GPU Rendering

Metal-backed rendering handles massive AI output without dropping frames. Scroll through 10,000-line diffs smoothly.

S

Built-in Starship

Starship prompt is compiled in. Git branch, language version, and execution time display instantly with zero shell overhead.

D

Built-in Delta

Syntax-highlighted diffs right in the terminal. Review AI-generated code changes without leaving your workflow.

z

Built-in z

Smart directory jumping. Hop between projects instantly when managing multiple AI coding sessions.

0

Zero Config

No .zshrc tweaks, no plugin managers, no font downloads. Install and start coding in seconds.

L

Lua Scripting

Customize keybindings and behavior with Lua when you need to go deep. Real scripting, not YAML.

Setup

Get Running in 60 Seconds

arb requires zero configuration. Here is the complete setup process:

Install arb

Run brew tap szj2ys/arb && brew install arb in any terminal. The 40MB binary includes everything — Starship, Delta, z, a Nerd Font, syntax highlighting, and the Aura dark theme.

Open arb

Launch arb from your Applications folder or Spotlight. Your shell boots in under 100ms with Starship prompt already active. No configuration files to edit.

Run your AI tool

Start claude, aider, gh copilot, or any other AI coding assistant. arb's GPU rendering, built-in diff viewer, and smart navigation are ready to handle whatever output your AI produces.

Workflows

arb with Every Major AI Coding Tool

arb works with any terminal-based AI tool. Here is how it improves the workflow for the most popular ones.

C

Claude Code

Claude Code produces massive output — file edits, diffs, explanations. arb's GPU rendering keeps up without stutter. Use git diff with built-in Delta to review AI changes with full syntax highlighting. Split panes let you run Claude Code in one pane and test in another.

G

GitHub Copilot CLI

Copilot CLI suggests shell commands and explains code. arb's fast rendering means suggestions appear instantly. The built-in Starship prompt shows git context so Copilot's suggestions have better context. Use z to jump between repos when working across multiple Copilot-assisted projects.

R

Cursor (Terminal Mode)

When Cursor's built-in terminal is not enough, arb gives you a dedicated high-performance terminal for running builds, tests, and git operations alongside Cursor. Delta-powered diffs let you review Cursor's changes directly in arb.

A

Aider

Aider runs entirely in the terminal, making terminal performance critical. arb's GPU rendering handles Aider's streaming output smoothly. Built-in Delta shows exactly what Aider changed with syntax highlighting. The 100ms shell boot means spawning new Aider sessions is instant.

arb — AI coding workflow
~/project arb on feature/auth
$ claude "add JWT auth to the API"
Editing src/auth.rs, src/middleware.rs, src/config.rs...
Done. 3 files changed (4.1s)
$ git diff
src/auth.rs | 52 ++++++++++++------
src/middleware.rs | 28 +++++++
src/config.rs | 11 ++-
3 files, 71 insertions(+), 20 deletions(-)
$ cargo test
running 14 tests... ok (0.8s)
$
FAQ

Frequently Asked Questions

arb is the best terminal for AI coding. It is GPU-accelerated, boots in under 100ms, and includes Starship, Delta, z, and syntax highlighting out of the box. It works with Claude Code, GitHub Copilot, Cursor, Aider, and any other terminal-based AI tool. Install with brew tap szj2ys/arb && brew install arb.
You do not strictly need one, but a GPU-accelerated terminal with built-in diff tools makes a significant difference. AI tools produce far more output than traditional coding. A terminal like arb handles that output smoothly and includes Delta for reviewing AI-generated diffs with syntax highlighting.
Yes. Aider runs entirely in the terminal, making terminal performance critical. arb's GPU rendering handles Aider's streaming output without stutter, and built-in Delta gives you syntax-highlighted diffs of every change Aider makes.
arb is free and MIT-licensed. No account required, no telemetry, no tracking. Fully open source on GitHub.
Absolutely. Many developers use arb as their dedicated terminal alongside Cursor or VS Code. arb handles git operations, builds, tests, and CLI-based AI tools while the editor focuses on editing. Split panes in arb let you run multiple commands simultaneously.

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