Infrastructure●●●Banger
BoxLite – the micro-VM runtime for embedded, local dev, and cloud prod
No-daemon micro-VMs with persistent state beat ephemeral agent sandboxes.
Big BrainSolve My Problem
dorianzheng
621mo ago
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NumaVM – Low Friction VMs
by bilalba·Mar 8, 2026·2 points·0 comments
AI Analysis
●●SolidSolve My ProblemBig Brain
Sub-500ms VM snapshot+restore with persistent disk beats containers, but Fly.io and Lambda already own this.
Strengths
- •Hibernation-on-idle + wake-on-request with sub-500ms cold start meaningfully reduces cost vs. always-on compute.
- •Real ext4 filesystem and full process state survival across snapshots solves key VM-vs-container tradeoff.
- •OAuth-gated URLs + one-click sharing unlock collaborative sandboxing without ngrok setup friction.
Weaknesses
- •Still in beta ('VM page needs TLC'); no pricing transparency or cost comparisons vs. Fly.io, Heroku, Lambda.
- •Target use case (AI agent sandboxing) overlaps Fly.io and exe.dev—unclear differentiation beyond sub-500ms claim.
Category
Target Audience
AI engineers and developers needing isolated sandboxes for untrusted code execution
Similar To
Fly.io · exe.dev · AWS Lambda
Post Description
I built and open-sourced a service/dashboard for spawning firecracker VMs, and running agents on it.
Spawn, snapshot, clone, delete. Somewhere in between fly.io and exe.dev.
VM page still needs some TLC but would love to hear feedback.
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