cmux Freestyle

Use this skill when a user wants a Freestyle VM snapshot that the cmux backend can boot Cloud VMs from. It lives in its own public repo, manaflow-ai/cmux-freestyle, so anyone with a Freestyle API key can run one shell script and get back a FREESTYLE_SANDBOX_SNAPSHOT id.

Freestyle snapshots are scoped to the account that created them. A snapshot id from manaflow's account, or from any other user, will not work for a different Freestyle account. Every user has to run the setup script against their own FREESTYLE_API_KEY. There is no shortcut.

When to use

• User asks how to point their own cmux at Freestyle.
• User self-hosts the cmux web backend and needs a snapshot pinned to a known cmux release.
• User wants to rebuild the cmux Cloud VM image on their own Freestyle account.
• User wants to iterate on the standalone repo (cmux-freestyle) instead of the in-repo builder at repo/web/scripts/build-cloud-vm-images.ts.

For internal cmux development that pushes a new snapshot to manaflow's Freestyle account and updates repo/web/services/vms/images/manifest.json, keep using repo/web/scripts/build-cloud-vm-images.ts. This skill is the external-user path.

What it builds

A Freestyle snapshot from a Dockerfile that mirrors freestyleBaseDockerfileContent in the in-repo builder: