How I can help
Apple Silicon ML — from research code to shipping product
You have a model that works. Now it needs to run fast, on-device, in
a real macOS or iOS app — or in a creative pipeline on Mac hardware.
I handle the CoreML and MLX conversion, the quantization decisions,
the attention implementation choices, and the Python or Swift glue
that holds it all together.
This is where my open-source work gives you the most leverage. Past
examples: 1.5–2× diffusion speedup via ANE optimization, batched
inference pipelines, custom node ecosystems for creative AI tooling.
Performance audit: from $5,000. Written report,
benchmarks, prioritized optimization paths. 1–2 weeks.
Request a performance audit →
Production Python backends
API design, data pipelines, deployment, observability — the
boring-but-essential work that makes a system you can actually rely
on. I've migrated enterprise codebases from Python 2 to 3, built a
market-making bot, designed CI tooling that outlived my time on the
team.
Technical advisory & code audits
When you need a second pair of eyes on a critical architectural
decision, a written review before committing to a direction, or an
honest assessment of a codebase you've inherited. Half-day to
multi-day engagements with a written deliverable.
Not sure where to start?
Book a 60-minute discovery call →
($200, refunded against any engagement we start together) — we'll
diagnose the situation. If we don't fit, I'll tell you and recommend
someone who does.
Selected work
ComfyUI-CoreMLSuite (open source · 180★)
A set of custom nodes that brings Apple Neural Engine acceleration to
ComfyUI workflows. 1.5–2× speedup on M2 Pro for
512×512 diffusion. Supports SDXL, LCM, ControlNet, LoRA baking, and
the full Stable Diffusion conversion pipeline. Used by the Apple
Silicon AI community since 2023.
github.com/aszc-dev/ComfyUI-CoreMLSuite →
Independent products
A browser-based tool I've been building around real-time audio — the
technical adjacent space to the ML work above.
blzr — a node-based editor for the Web Audio API.
Aims to cover the full API surface through a React Flow interface,
extended with utility nodes (MIDI), custom AudioWorklets, and
keyboard input. Built for fast prototyping of audio engines that run
entirely in the browser.
blzr.app →
·
docs.blzr.app →
About
I've spent eight years building software in places where it actually
has to work — enterprise networking at CodiLime, market-making at
Igoria, integration APIs at Xfaang. I've migrated codebases from Python
2 to 3, mentored junior engineers, and built tooling that outlived my
time on the team.
In 2023 I started ComfyUI-CoreMLSuite because Apple Silicon ML
acceleration was a frontier no one had made accessible to
non-specialists. It's now a 180-star project I still maintain — and
the foundation of how I work with clients today.
My instinct is for systems that are stuck — slow, brittle, or unclear
— and for figuring out which single lever actually moves them. That's
the work I want more of.
Remote, based in Poland (EU/CET). Working with clients internationally.
If any of this resonates,
hi@aszc.dev is the shortest path.