Independent technical & policy consulting
Find the gap.
Make it work.
I find what stops a system from working—and build the fix.
ML systems, GPU debugging, software security, and industrial policy. Tested work, with evidence you can inspect.
01 / Technical practice
The work goes all the way
to the implementation.
Diagnosing the failure is the beginning. I build the fix, test it on the hardware, and work it through upstream review.
Selected work / Machine learning systems
More from the
hardware you own.
Train large Mixture-of-Experts models on a single GPU. Loggetta checks the hardware, plans the run, and saves a report. One install includes the runtime and 4-bit kernels.
Measured runtime comparison
1.92×
Unsloth's GPU time per training step, against e4b's
Qwen3-30B-A3B QLoRA · one RTX 5090
Both frameworks on one software stack, with matched adapters, initialization, and tokens, and e4b at its defaults. Held-out loss comparable. Wall-clock: 2.80× on an AMD EPYC 7713 host.
The tradeoff: Unsloth peaked lower, 24.27 against 26.16 GB. Wall-clock ratios depend on the host, because Unsloth spends more of each step on the CPU. Earlier wall-clock readings, before e4b’s current defaults: 2.352× and 2.468×.
New in Loggetta 0.6.0: an AMD GPU is found and refused by name, and with experts4bit-qlora 0.53.0 or later the grouped_nf4 MoE backward is priced once. The speed result above is the runtime underneath.
GPU correctness / OpenVINO
From a driver mismatch
to an upstream fix.
Intel GPU kernels assumed an OpenCL operation the driver no longer provided. I traced the failure, developed the shared-header replacement, migrated affected kernels, and added a regression test for the bug class.
Three merged PRs carry the repair and test. On the measured UHD P630 / TinyLlama int4 setup, the fixed GPU path decoded at 18.4 tokens/s against 13.9 on CPU fallback. Energy was not measured.
Security research / ZisK zkVM
Read what the proof
actually proves.
A signed-remainder constraint checked magnitude but left the sign free for negative dividends. The ZisK team published the finding as a Critical advisory and credited me as a reporter.
The report checked constraints and witness components; it did not produce an end-to-end forged proof. The final fix came from Cody Gunton’s independent report of the sibling quotient-sign bug.
More systems work · upstream fixes, kernels, and security
Fix the tools the work depends on.
Merged fixes stop training caches from retaining dequantized weights, correct end-of-sequence handling, and repair MoE weight preprocessing.
Compute on the packed weights.
grouped-nf4-gemm and experts4bit-qlora run MoE computation directly on low-bit weights. The research records performance, byte-level checks, and the experiments that failed.
Make recovery part of the tool.
asahi-luks-setup adds disk encryption to existing Fedora Asahi installations. Hardware testing informed both the installation paths and a recovery command for interrupted reencryption.
Check what actually arrived.
arr-malware-screen checks the files discovered after extraction, closing the gap left by queue-time screening in the *arr media stack.
02 / Policy practice
The same questions,
at institutional scale.
Analysis of industrial capacity, trade, and who owns the infrastructure that people depend on.
Trade & regulation
How regulatory infrastructure can preserve the effects of a tariff regime after its legal basis falls away—and why the headline rate tells only part of the story.
Essay · 2026 · ~7,600 words
Industrial capacity
An examination of the conflict between shareholder returns and military readiness, and the case for government-owned, contractor-operated capacity.
Essay · 2026 · ~4,200 words
Computing & public power
What is at stake as computation moves from machines people own to infrastructure they rent—and the institutional choices that could preserve local control.
Essay · 2026 · ~9,000 words
I serve on the board of Oteco, Inc., a Houston industrial manufacturer founded in 1948. That experience informs the questions I bring to policy work.
Browse all essays