Tart

2.27.3

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macOS and Linux VMs on Apple Silicon to use in CI and other automations
automation macos tart virtualization virtualization-framework apple-silicon ci fair-source
cirruslabs/tart

What's New

2.27.3

2025-06-11T19:44:57Z

What's Changed

  • docs: new "Bridging the gaps with the Tart Guest Agent" blog post by @edigaryev in #1080
  • tart exec: make sure goes after flags like -i and -t in --help by @edigaryev in #1090
  • tart exec: do not limit RPC call duration to 1 second by @edigaryev in 8dc8b64

Full Changelog: 2.27.2...2.27.3

Tart is a virtualization toolset to build, run and manage macOS and Linux virtual machines (VMs) on Apple Silicon. Built by CI engineers for your automation needs. Here are some highlights of Tart:

  • Tart uses Apple's own Virtualization.Framework for near-native performance.
  • Push/Pull virtual machines from any OCI-compatible container registry.
  • Use Tart Packer Plugin to automate VM creation.
  • Easily integrates with any CI system.

Tart powers Cirrus Runners service — a drop-in replacement for the standard GitHub-hosted runners, offering 2-3 times better performance for a fraction of the price.

Many companies are using Tart in their internal setups. Here are just a few of them:

Note: If your company or project is using Tart please consider sharing with the community.

Usage

Try running a Tart VM on your Apple Silicon device running macOS 13.0 (Ventura) or later (will download a 25 GB image):

brew install cirruslabs/cli/tart
tart clone ghcr.io/cirruslabs/macos-sequoia-base:latest sequoia-base
tart run sequoia-base

Please check the official documentation for more information and/or feel free to use discussions for remaining questions.

Description

  • Swift Tools 5.10.0
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Dependencies

Last updated: Tue Jun 24 2025 19:41:06 GMT-0900 (Hawaii-Aleutian Daylight Time)