# About Pacer

Why Pacer exists: Fig-style terminal autocomplete for macOS, made to run only on your Mac.

## What it is

Pacer is a terminal autocomplete popover for zsh. While you type in Ghostty, iTerm2, or Terminal, it opens next to your cursor and lists subcommands, options, branches, files, and scripts, with a short description of each.

## Why it exists

Fig showed how useful a popover in the terminal can be, and then it shut down. Its code lives on as open source. Pacer takes that code, keeps the popover and the spec library, and removes everything that needed an account, a server, or AI.

## Rules

- **One setup**: Apple silicon macOS and zsh, in Ghostty, iTerm2, or Terminal. Doing one setup well beats doing many badly.
- **Local only**: No AI, no account, no telemetry. Every feature works from data on your Mac.
- **Fast**: The popover must update within about 100 ms of a keystroke. `pacer stats` measures it on your Mac.
- **Invisible when idle**: Your shell behaves the same with Pacer as without it.

## Status

Pacer is in development and is not ready for users yet. The home page lists what works today and what is planned.

## Author

Pacer is made by [Off Leash Labs](https://offleashlabs.dev/).