About

Chris Crevling, the developer behind Duffion

Chris "McDuffs" Crevling

Software built around the people using it.

I’m Chris “McDuffs” Crevling, the developer behind Duffion. I build websites, commerce systems, custom applications, and integrations for teams whose work does not fit neatly into a template.

Experience built around real operations

My work spans retail checkout and inventory in FULCRUM, scientific-product catalogs and quote workflows for Ares Scientific, and long-running custom website development. The details matter: how a staff member edits a page, how an order reaches another system, and what happens when a process needs to recover.

During Duffion’s five-year AdventureSmith engagement, I built Widgety integrations, custom loaders, ACF blocks, and hand-coded refactors. Historical Lighthouse scores improved from 60 to 99 on desktop and 25 to 70 on mobile. I later completed a separate nine-month solo rebuild in my full-time developer role at AdventureSmith.

How I work

  1. Understand the workflow. Start with the people using the system, the business rules, and the result that will count as done.
  2. Agree on the scope. Define the deliverables, dependencies, budget, and acceptance checks before the build.
  3. Build and verify. Review the work in usable increments and test the important content, data, and integration paths.
  4. Release and hand over. Plan deployment, recovery, documentation, and the support responsibility after launch.

Where I’m a good fit

I work directly with owners and teams who need a custom website, an integration between existing tools, or a developer who can take responsibility for an inherited system. I also contribute alongside internal developers and agencies; those relationships are identified in the portfolio.

A focused improvement may need a small engagement. A new business application, complex migration, or AI workflow needs discovery and a broader plan. I’ll help establish that distinction before quoting the work.

Beyond development

As mcDuffs, I led and streamed with IMBAtv and worked in StarCraft II broadcasting. Preparing for a live production taught me to make the next action clear and stay useful when the plan changes.

Tell me what you’re trying to build, or explore the project portfolio.