Set up once. Fork for every rollout.

import { Client } from "@taskcloud/sdk";
const client = new Client();

// 1. Prepare the environment once
const base = await client.sandboxes.create({ size: "default", priority: "batch" });
await base.exec({ command: "git clone https://github.com/acme/repo && cd repo && make deps" });

// 2. Fork it, memory included: 32 rollouts in one call, all or nothing
const children = await base.fork({ count: 32, labels: { run: "eval-17" }, ttl_seconds: 3600 });
const results = await Promise.all(children.map(async (child, i) => {
  try {
    return await child.exec({ command: tasks[i].command, timeout_seconds: 600 });
  } finally {
    await child.delete();   // billing for this copy stops here
  }
}));

// 3. Keep the base for the next run at $0 compute
await base.pause();