Public story · 2026-03-18 · source-backed

Zeroboot: Sub-Millisecond VM Sandboxes.

Issue

2026-03-18

Confidence

source-backed

Sources

Redaction

passed

Story

Firecracker + CoW mmap forking spawns KVM-isolated sandboxes in 0.79ms p50 with 265KB memory per instance — versus E2B's ~150ms and ~128MB. At this scale, sandboxed code execution becomes viable inside interactive agent loops where latency directly impacts UX. GitHub

E2B supports Firecracker / Shared entities / Same source domain / Shared topic / What happened next
Six independent sandbox projects are now competing on "give the agent a disposable computer."
Linked by a graph relationship (E2B supports Firecracker); both cover E2B, Firecracker; reported by the same outlet (github.com).
Mastra ships v1 ToolProvider runtime plus MicroVM and MySQL backends.
Linked by a graph relationship (E2B supports Firecracker); both cover Firecracker, GitHub; reported by the same outlet (github.com).
E2B partners with OpenAI / Shared entity: GitHub / Same source domain / Shared topic / What happened next / Tension
Agent Plugins 1.0 went GA — and a lab outside the authoring group shipped support the same week
Linked by a graph relationship (E2B partners with OpenAI); both cover GitHub; reported by the same outlet (github.com).
Warp Open-Sources Its Terminal and Bets Everything on Cloud Agents
Linked by a graph relationship (E2B partners with OpenAI); both cover GitHub; reported by the same outlet (github.com).
E2B supports Firecracker / Shared entities / Same source domain / Earlier coverage
Tier 2: Watch Closely
Linked by a graph relationship (E2B supports Firecracker); both cover Firecracker, GitHub; reported by the same outlet (github.com).
E2B partners with OpenAI Agents SDK / Shared entity: GitHub / Same source domain / Shared topic / What happened next
OpenAI Agents SDK Adds Network-Disabled Docker Sandboxes
Linked by a graph relationship (E2B partners with OpenAI Agents SDK); both cover GitHub; reported by the same outlet (github.com).
E2B partners with OpenAI / Shared entity: GitHub / Same source domain / Shared topic / What happened next
ChatGPT Desktop Imports Your Claude Code Setup
Linked by a graph relationship (E2B partners with OpenAI); both cover GitHub; reported by the same outlet (github.com).
E2B supports Firecracker / Shared entity: Firecracker / Same source domain / Shared topic / What happened next
AgentENV is the sandbox fleet that trained Kimi K3, at sub-50ms boot.
Linked by a graph relationship (E2B supports Firecracker); both cover Firecracker; reported by the same outlet (github.com).

Source trail

GitHub

Entities

CoW E2B Firecracker GitHub KVM Millisecond VM Sandboxes Zeroboot

Provenance

Canonical issue: Ramsay Research Agent — March 18, 2026
AI generated: no
Story unit: 2026-03-18-zeroboot-sub-millisecond-vm-sandboxes
Labels: source-backed, canonical briefing excerpt

Fetching from the wire…

Zeroboot: Sub-Millisecond VM Sandboxes.

Story

Related stories

Six independent sandbox projects are now competing on "give the agent a disposable computer."

Mastra ships v1 ToolProvider runtime plus MicroVM and MySQL backends.

Agent Plugins 1.0 went GA — and a lab outside the authoring group shipped support the same week

Warp Open-Sources Its Terminal and Bets Everything on Cloud Agents

Tier 2: Watch Closely

OpenAI Agents SDK Adds Network-Disabled Docker Sandboxes

ChatGPT Desktop Imports Your Claude Code Setup

AgentENV is the sandbox fleet that trained Kimi K3, at sub-50ms boot.

Source trail

Entities

Provenance

Zeroboot: Sub-Millisecond VM Sandboxes.

Story

Related stories

Six independent sandbox projects are now competing on "give the agent a disposable computer."

Mastra ships v1 ToolProvider runtime plus MicroVM and MySQL backends.

Agent Plugins 1.0 went GA — and a lab outside the authoring group shipped support the same week

Warp Open-Sources Its Terminal and Bets Everything on Cloud Agents

Tier 2: Watch Closely

OpenAI Agents SDK Adds Network-Disabled Docker Sandboxes

ChatGPT Desktop Imports Your Claude Code Setup

AgentENV is the sandbox fleet that trained Kimi K3, at sub-50ms boot.

Source trail

Entities

Provenance