From Hobby to Hardware: Building CardMill and Bootstrapping a Physical Product with Jonathan Domanus
In this episode of the Pixel Retentive Podcast, Carl sits down with Jonathan Domanus — founder of CardMill, an automated trading card scanner and sorter built to modernize how collectors organize and catalog their collections.
A lifelong Magic the Gathering player and software developer, Jonathan turned a personal frustration into a fully engineered hardware product after discovering that existing solutions cost more than $10,000. What began as a DIY prototype built from a Raspberry Pi and LEGO bricks evolved into a $2.4 million Kickstarter success story backed by thousands of collectors.
At the heart of this conversation is a powerful idea: community trust beats capital.
We explore the realities of bootstrapping hardware, managing risk, navigating manufacturing pivots, and building a product for everyday players without venture funding.
Here’s a glimpse of what you’ll learn:
How CardMill went from hobby prototype to $2.4M Kickstarter
Why most Kickstarters fail and how engagement changes the odds
Spending $28,000 on ads and betting on yourself
Building a loyal Discord community before launch
The realities of manufacturing hardware at scale
Pivoting engineering teams mid-project
Locking in factory pricing during economic volatility
Balancing affordability with long-term sustainability
Why direct community communication builds trust
The emotional and financial risk of bootstrapping without VC
“If there was no risk to anything, everyone would do it.”– Jonathan Domanus
Jonathan’s journey underscores a fundamental entrepreneurial truth: risk is unavoidable, but belief, discipline, and community engagement reduce uncertainty. By staying transparent and reinvesting every dollar into engineering, he transformed backers into believers and believers into advocates.
In This Episode…
Jonathan reflects on discovering that professional card scanning machines were priced out of reach for everyday collectors. Rather than accept that limitation, he built his own solution from scratch using tools he had at home.
Carl and Jonathan dig into the realities of Kickstarter, including spending $28,000 of personal funds on advertising before launch, responding to nearly every message during a six-week campaign sprint, and building trust through transparency.
They unpack the manufacturing pivot that forced Jonathan to scale beyond his original engineering team and partner with industrial design and electronics firms capable of handling production at scale. From tariff uncertainty to international shipping challenges, the episode reveals what it really takes to ship physical hardware in today’s volatile economy.
Jonathan also shares a heartfelt shout-out to his wife, Lindsay, whose graphic design expertise, strategic grounding, and unwavering support made CardMill possible. Carl gives a special thanks to Michael Prince of Beyond Design for the introduction and industrial design partnership.
This episode is about ownership, resilience, and building something for the community you belong to.
Until next time,
Carl Cleanthes
Resources Mentioned in this episode:
CardMill: https://cardmill.com
Beyond Design: https://www.beyonddesignchicago.com
DMC Inc.: https://www.dmcinfo.com
Contact Jonathan Social links: linktr.ee/cardmill
Sponsor for this episode...
This episode is brought to you by Epic Made.
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We are a collective of senior-level artists across multiple disciplines, producing trailers, key art, social campaigns, branded storytelling, and motion systems for entertainment, gaming, and pop culture brands. Our work has supported major networks and studios, including SYFY and Nickelodeon.
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