Posts

All the articles I've posted.

• Firecracker, QEMU, and libkrun Performance Benchmarks and Sizing Profiles

  11 Jul, 2026

  Measured Firecracker and QEMU performance, an honest libkrun data gap, reproducible benchmark commands, and practical sizing profiles for AI sandboxes.

• Petabyte-scale storage for AI agent sandboxes

  Updated:3 Jul, 2026

  CelestoFS gives AI agent sandboxes a durable petabyte-scale workspace filesystem for repositories, build artifacts, datasets, and workspace state.

• How qcow2 Overlays Work in QEMU

  6 Jun, 2026

  Learn how qcow2 backing files work in QEMU, why they are different from Linux overlayfs, and how they make VM sandbox cloning fast and cheap.

• Open Source Windows Sandbox in Python: Run Windows 11 on Linux with SmolVM

  26 May, 2026

  SmolVM now supports Windows 11 sandboxes. Boot disposable Windows VMs from Python, run PowerShell, upload files, pass environment variables, and tear the VM down after the task.