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8th February 2026

Research libkrun-go-cli-tool — Krunsh is a minimal Go CLI tool that executes newline-delimited shell commands inside an ephemeral KVM-based microVM, leveraging the libkrun library for lightweight virtualization. By piping commands from stdin, krunsh spins up a microVM, runs the specified commands using `/bin/sh -c`, captures the output, and discards the VM afterward, ensuring zero persistent state and strong process isolation.

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This is a beat by Simon Willison, posted on 8th February 2026.

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