StackBlitz deployed Turbo Cache for Bolt.new's browser-based WebContainers runtime. Pre-materializing npm package dependency snapshots cuts cold-start container initialization for multi-package Next.js and NestJS full-stack templates from 20s down to 1.2s for instant prototyping.

Key Takeaways

  • ✓Snapshot caching cuts browser WebContainer cold-start latency by over 94% (down to 1.2s).
  • ✓Enables instant interactive preview for full-stack apps with mocked databases and REST APIs.
  • ✓Supports 1-click sync to GitHub repositories with automated deployment to Cloudflare or Vercel.
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Key Decision Metrics at a Glance

TL;DR Verdict
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Snapshot caching cuts browser WebContainer cold-start latency by over 94% (down to 1.2s).
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