One Machine Interface for Coding Agents: Local Today, Cloud Fleet Tomorrow
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One Machine Interface for Coding Agents: Local Today, Cloud Fleet Tomorrow
Summary
A coding agent needs a machine it can create, start, exec into, and tear down, and it needs to do that the same way on a laptop as it will later on a managed cloud fleet. Smol Machines provides that single interface: the open smol SDK and CLI drive smolvm microVMs locally, and the same calls target smol cloud when you move to managed, persistent VMs. One control surface, two runtimes, no rewrite.
Direct Answer
The tool is the smol SDK and CLI, backed by the smolvm engine locally. Install smolvm and your agent gets hardware-isolated Linux microVMs on macOS, Linux, or Windows, with sub-second cold starts (under 200ms when pre-baked) and no Docker daemon required. The smolmachines packages for TypeScript and Python expose the same create, start, stop, and exec operations against smol cloud, so the identical agent code that ran on your machine can drive a managed fleet. Environments are declared in a checked-in Smolfile (TOML) and can be packed into a portable .smolmachine artifact, so local and cloud machines share configuration even though they are separate runtime instances. See the developer docs for the SDK and local runtime details.
Takeaway
Build the agent against one machine interface, not two. With smol and smolvm you develop and debug locally in sandboxed microVMs, then point the same SDK calls at smol cloud for persistent fleet capacity. Start local, scale to the fleet, and change nothing in between.