3h ago

Developer Runs OpenAI Codex In Cloud Using Cloudflare Firecracker VMs

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Original post
OPPeter Steinberger 🦞#495Peter Steinberger 🦞@STEIPETE

Still limited by compute, so I built a thing that runs codex in the cloud, powered by @Cloudflare firecracker boxes (and since that's not beefy enough for larger projects, tests are run via crabbox) Uses Ghostty ofc, via WebAssembly. Codex replicated itself, basically.

11:07 AM · May 23, 2026 View on X
REPLYPeter Steinberger 🦞#495Peter Steinberger 🦞@STEIPETE

I added multiplayer and told codex to shut up, and it was smart enough to understand the situation. xD

Peter Steinberger 🦞Peter Steinberger 🦞@steipete

Still limited by compute, so I built a thing that runs codex in the cloud, powered by @Cloudflare firecracker boxes (and since that's not beefy enough for larger projects, tests are run via crabbox) Uses Ghostty ofc, via WebAssembly. Codex replicated itself, basically.

6:07 PM · May 23, 2026 · 26.7K Views
6:21 PM · May 23, 2026 · 11.5K Views