Matthew Cromer

Engineer turned product builder. I've built 0→1 products from factory floors to game platforms. Now building a 3D printing marketplace and tools for AI leverage.

Work

MAKE

A marketplace for 3D printed goods

WorkflowSkill

A declarative workflow language for AI agents.

OpenClaw WorkflowSkill Plugin

Author, validate, run, and review WorkflowSkill workflows — without leaving the OpenClaw chat.

Blog

Thoughts, ideas, and things I'm up to.

Progress on the Workflow Authoring ProblemMar 2026Improving the ergonomics of repeatable agent workThe Workflow Authoring ProblemMar 2026Exploring the ergonomics of repeatable agent workMAKE ep. 2: What 20M Downloads Taught Me About What To BuildJan 2026The scraping -> LLM classification -> insight pipeline that powers my launch product decision making for MAKE.
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Product Toolkit

Frameworks and mental models for product thinking, whether you're transitioning into product, building your own thing, or working more effectively with PMs.

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Elsewhere

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