Celesto AI Blog

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• 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.

• VMs vs microVMs vs Docker for AI Agents

  10 Apr, 2026

  Not all isolation is equal. Here's how to pick the right one for your AI agents.

• What are AI sandboxes

  10 Apr, 2026

  Give it a disposable computer, not your laptop.

• Don’t Let Claude Use Your Computer from the CLI

  30 Mar, 2026

  Give it a disposable computer, not your laptop.

• Scraping Pokemon Cards with AI Agents

  5 Feb, 2026

  Build an AI agent that scrapes Pokemon card prices from Cardmarket using Agentor and ScrapeGraphAI. Full code included.

• OpenClaw vs ChatGPT: Why I Cancelled ChatGPT After Using OpenClaw

  5 Feb, 2026

  I cancelled ChatGPT after switching to OpenClaw—an always-on assistant you can use via Telegram, WhatsApp, or iMessage. Here’s the difference.

• Why You Should Not Run OpenClaw on Your Personal Laptop (and What to Do Instead)

  4 Feb, 2026

  Running OpenClaw on your laptop is convenient—but unreliable and risky. Learn the real failure modes and safer ways to host it (VPS, sandboxing, or Celesto).