ovm.sh / open version manager

Open Version Manager for CLI tools

Track releases. Pin versions. Catch breaking changes.

get ovm github
curl -fsSL https://ovm.sh/install | sh

Recommended for most macOS and Linux installs.

startup and response history

Claude Code and Codex releases over time, grouped by product, metric, and model where available.

full report
native macOS runner 17 versions · generated 2026-06-29

OVM in practice

Demo video slot: install a version, switch a CLI, watch releases, then publish a benchmark artifact.

01

Watch releases

Detect upstream CLI updates and keep install evidence before benchmark work is queued.

02

Pin exact builds

Install and switch Codex, Claude Code, and Pi versions without losing the current working setup.

03

Measure locally

Run native macOS clean-room startup tests and real-home MCP/auth response checks.

04

Publish evidence

Turn benchmark history and release watcher output into static research artifacts.