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We replaced our entire build system with Firecracker MicroVMs. Same tech behind AWS Lambda. Each build gets its own VM. Boots in under a second. Destroyed when done.

The numbers: 95% faster queues (39.7s → 1.9s) 77% faster cache fetch 56% faster dependency install Cache saving: 4+ min → 26 sec

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Already live. 300K builds/day. Zero config changes on your end. Next.js, Astro, Gatsby, Hugo, Nuxt, Remix, SvelteKit. All validated.