Keep agent memory alive across crashes: persistent loop plus Firecracker microVM snapshots
vasuman · x · 2026-10-21
A practitioner shares an architecture for keeping agent memory intact when execution environments crash or sleep: run the main agent loop on a boring persistent server, execute code and bash calls in throwaway Firecracker microVMs, snapshot and spin down idle VMs, and route interrupts/webhooks directly to the persistent server so nothing drops while the VM is paused. Vasuman amplifies it as the kind of advice a Fortune 500 CTO would pay $10,000 for, posted free on X with almost no engagement.
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