# Ditto CLI

## Install

Homebrew installs a prebuilt binary on macOS and Linux, so it needs no Rust toolchain.

## Or build from source

Cargo needs Rust 1.85 or newer.

## The problem

Claude Code, Codex, opencode, and OMP each keep login state in one place on disk. That works until you need a different account for a different job. Moving auth files around by hand is easy to get wrong, and it is hard to tell which account the next session will use.

Ditto gives every profile its own authentication, settings, and session history, then launches each tool pointed at the profile you picked. Nothing is swapped, so a switch only affects the process Ditto started.

## How profiles stay separate

• Claude CodeCLAUDE_CONFIG_DIR=~/.ditto/profiles/<name>/claude
• CodexCODEX_HOME=~/.ditto/profiles/<name>/codex
• opencodeXDG data, config, and state homes under the selected profile
• OMPomp --profile <name> and OMP_PROFILE=<name>

## The picker

┌ Profiles ──────────────┐┌ Selected profile ──────────────────┐
│  default  existing     ││work  Isolated profile              │
│› work              ★   ││                                    │
│  personal              ││Sign-in status                      │
│                        ││Claude Code  ● Signed in            │
│                        ││Codex        ○ Sign in required     │
│                        ││opencode     ⠹ Checking             │
│                        ││OMP          · Use /login inside OMP│
└────────────────────────┘└────────────────────────────────────┘
  c Claude Code · x Codex · o opencode · p OMP
  ↑↓ select · n new · e rename · d default · q quit

## Beyond the picker

Every action has a command behind it, so Ditto scripts as well as it clicks. Workspaces remember which profile a repository uses, and shell integration can put Ditto in front of each supported tool under its own command name.