“I kept building spreadsheets to run my reselling business.
They kept breaking.
So I built something that wouldn't.”
Dom Cushnan — founder, Wrenlist
By day, I build systems.
By weekend, I source.
I work in technology — specifically the kind where you spend a lot of time thinking about how complex things fit together, where the gaps are, and why well-intentioned processes quietly break. It's work that requires a certain kind of patience with imperfect systems.
On weekends, I switch off. Or try to. I source vintage on the Welsh border — a genuinely good patch for house clearances, small-town charity shops and local auctions that haven't been picked over. I've been doing it for years, first as a hobby, then properly as a business that funds itself and gives me the kind of Saturday I need after a week of screens.
“I wasn't after listing speed. I wanted to know which car boot was worth the 6am start, and which category was actually making me money.”
The tools that existed
weren't built for me.
I tried spreadsheets. Brittle, slow to update at the rack, impossible to get useful numbers out of. I tried Vendoo and Crosslist — solid tools for listing speed, but useless for the questions I actually cared about. What's my real margin on this jacket? Which source gives me the best return? Which platforms are selling, and which are just sitting?
Everything was either too basic, too US-focused, or built for someone who treats reselling as a side hobby rather than a real small business. Nothing started at the rack. Nothing thought in pounds. Nothing tracked the full journey from find to sale.
One evening I started building the thing I needed. Not as a product — as a tool that solved my specific problem. When I mentioned it in reselling communities, the response was immediate. Same frustrations. Same gap.
outside funding.
Built on what it earns.
person who uses it
every single weekend
first, always.
Not an afterthought.
What Wrenlist actually is.
It's the tool I use to run my reselling business. Every feature was built because I needed it. The add-find screen is fast because I use it at the rack, standing in a draughty house clearance at 9am. The margin tracking is prominent because it's the only number that actually matters. The source analytics exist because I wanted to know whether that two-hour drive to Builth Wells was worth it.
Every pricing decision I've made has been as someone who knows what £14 a month means to a reseller still figuring out if this is a hobby or a business. It's not a lot. But it has to earn its keep.
Wrenlist is bootstrapped, independent, and built to stay that way. No VC money means no pressure to bloat it with features nobody asked for, no pressure to optimise for metrics that aren't yours.
Still building. Still sourcing.
Next major marketplace — bringing your inventory to Gen Z buyers.
A real one, built for the rack. Not a responsive web page dressed up as an app.
Wren AI that shows you what comparable items actually sold for, not just what they're listed at.
The roadmap is public. Vote, suggest, watch things actually get built. See the roadmap →
If any of this sounds familiar — the spreadsheet, the guesswork, the Sunday hauls — you're who this was built for.