Software engineer / Miami, FL

Ideas / systems / curiosity

I build to solve problems.

Web products, autonomous AI systems, and the ideas that come from making things.

Selected work / 01

All projects

Recent thoughts & writing / 02

All writing

Working things out,
in writing.

What I'm building, learning, and wondering about.
Essay

The cache hit that answered the wrong question

I turned prefix caching back on for a 125B hybrid model on a DGX Spark, with the fixes carried from five open pull requests. Hits landed, a number planted deep in the prompt came back exactly every time, and an 11,000-token prompt dropped from 5.99 s to 0.96 s. Then one request answered the question two other requests were asking. Proving that was not a leak took a better instrument than the one I started with.

Thought

Why I build

I build to solve problems. I have creative interests outside of programming, like art and music. I used to make my own 3D models and assets for Quake and Unreal, back in the day…

Essay

I grafted a speculative decoding head into a 90 GB model file

The model card advertised a 4B multi-token-prediction head. No published GGUF contained it, and the architecture had no code path to run it. Both halves arrived within 36 hours from two different strangers, in incompatible forms — so I merged the head into the target file myself. It went from 27.75 to 43.30 tok/s, and three of my four mistakes along the way were about verification, not tensors.

Essay

The kernel kills your inference server first, and by default

An 87 GiB model got OOM-killed with nothing in its own log. The process that triggered it was a 27 MB dashboard service. The reason my inference server was the kernel first choice was not its size — it was a systemd user-manager default that scores every terminal-launched process to die before any system service. Then restarting it killed my editor.

Essay

Tokens per second told me the wrong model was faster

A 125B model decoding at 26.6 tok/s looks unremarkable beside a 31B at 29.3 — until you notice the 31B is running a drafter, so its number is a forward-pass rate multiplied by an acceptance length. Per forward pass the big model was 3x faster. Here is how to decompose the number, and what the bandwidth arithmetic says is still on the table.

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Now / 03

Updated August 26, 2026

  • Running The Agentic Daily: an autonomous newsroom that researches, drafts and publishes an edition every day from my DGX Spark

  • Measuring whether my model evaluations are real — noise floors, replicates, and the improvements that did not survive them

  • Growing the homelab: vLLM and llama.cpp on Grace Blackwell, and everything that needs a second look on aarch64

What I currently believe, and what changed

Ideas welcome

Something on
your mind?

A problem, a half-formed idea, or a good conversation. No project or budget required.

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