Show HN: SmolVM – open-source sandbox for coding and computer-use agents

I started building it because agent workflows need more than isolated code execution. They need a reusable environment: write files in one step, come back later, snapshot state, pause/resume, and increasingly interact with browsers or full desktop environments.

Right now SmolVM is a Python SDK and CLI focused on local developer experience.

Current features include: - local sandbox environments - macOS and Linux support - snapshotting - pause/resume - persistent environments across turns

Install: ``` curl -sSL https://celesto.ai/install.sh | bash smolvm ```

I’d love feedback from people building coding agents or computer-use agents. Interested in what feels missing, what feels clunky, and what you’d expect from a sandbox like this.