sys.writingNotes from
Notes from
the metal.
Engineering write-ups on how we build and run production systems — no content marketing, just what we actually do and what it costs.
post.01infrastructure2026-09-16 · 6 min
Why We Run Client Workloads on Bare Metal Instead of AWS
The cloud is a rental with a meter. We did the math on our own cluster — and the case for owning the metal is stronger than the brochure says.
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Private LLM Deployment: Running AI Without Sending Data to OpenAI
Zero-egress inference isn't a paranoia feature — it's how you make AI a fixed cost and keep client data legally clean. Here's the actual architecture.
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