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tech deep-dive

How to Choose an Execution Environment and Sandbox: From Namespace and gVisor to Firecracker, E2B, and Lambda MicroVMs

A sandbox is not a single package but a spectrum—Namespace, cgroups, seccomp, gVisor, and Firecracker stacked by trust boundary; local OS sandboxes bound blast radius, cloud microVMs bound multi-tenancy, and the choice hinges on trust and ops cost.

#sandbox#firecracker#gvisor#docker#e2b#cloudflare#ai-agent
ai deep-dive

Vercel Sandbox Deep Dive: Putting the Agent Execution Layer Inside the Vercel Ecosystem

Vercel Sandbox isolates untrusted code in Firecracker microVMs and integrates with Fluid compute, Active CPU pricing, and Vercel OIDC. It fits agents already running on Vercel, but network defaults, memory billing, and persistence still require deliberate design.

#vercel#sandbox#ai-agent#fluid-compute#firecracker#security