Marceli Polubiec

[Marceli Polubiec @Marceli__P]

@ArthurReyn MVP of a crosslisting platform

[Marceli Polubiec @Marceli__P]

day 4: building a platform that automatically sells used stuff online.

throwback to the start. my first prototype used Telegram as the frontend and Make as the backend. no vibe coding yet, i just wanted a proof of concept.

it was enough to get my first users, test the workflow, and find what needed fixing. it also gave me enough traction to convince a CTO to join.

what did your first prototype look like?

[Marceli Polubiec @Marceli__P]

@hackteck Tourism in Poland is booming. Great to see it. Try Lodz next time

[Marceli Polubiec @Marceli__P]

@CommanderStubbs @Spshulem Isn’t BPO over?

[Marceli Polubiec @Marceli__P]

@zajkowskimarcin @resend Of course, check my platform and you’ll see
https://t.co/X6R6PPrxpb

[Marceli Polubiec @Marceli__P]

@razvanships Keep grinding, eventually something must succeed

[Marceli Polubiec @Marceli__P]

@darrenmarble Count me in

[Marceli Polubiec @Marceli__P]

Many people who have never built a startup will give you advice on how to do it.

Should you listen?

[Marceli Polubiec @Marceli__P]

@travis_flywheel It definitely gives you a lot of learning at the early stage and prevents from making mistakes later on

[Marceli Polubiec @Marceli__P]

day 8: I just spent the whole Sunday doing manual work because our platform doesn't have the features we need yet.

while we build them I have to make sure that we do everything we can to meet the expectations of our first users.

when you start selling an unfinished product it's just the way it is

[Marceli Polubiec @Marceli__P]

@benln 👋

[Marceli Polubiec @Marceli__P]

@IamMLeclercq Distribution is the key

[Marceli Polubiec @Marceli__P]

@sridharfyi we’re helping businesses sell dead stock
what would be GMV and number of clients you’d consider good evidence

[Marceli Polubiec @Marceli__P]

@zajkowskimarcin @thekitze love the name tho

[Marceli Polubiec @Marceli__P]

@MeredithCheng22 @marconoiz don’t wait
send me your startup
I’m gonna test it and give feedback

[Marceli Polubiec @Marceli__P]

@Joi2James selling used stuff - actually shipped it

[Marceli Polubiec @Marceli__P]

day 7: we’re doubling down on the sales channels that actually convert.

PMF is a lot of testing…

[Marceli Polubiec @Marceli__P]

@MubarakIsm80813 Thanks!

[Marceli Polubiec @Marceli__P]

day 6: building SaaS that helps businesses sell dead stock on marketplaces.

we signed our first business client today. here's how it happened.

before building the MVP, I wanted to validate the idea. so I put up a listing on a marketplace that described what the platform does - without mentioning any of the tech.

in 4 weeks, only 8 people looked at it. but one of them called. she'd just closed her boutique and needed to clear out the leftover stock.

we talked for a few weeks. I tried to sell her items in bulk, but it didn't work. around the same time we shipped the platform, she agreed to be the first to test it.

what's the story behind your first customer?

[Marceli Polubiec @Marceli__P]

@Tristanrhee3 AI agents

[Marceli Polubiec @Marceli__P]

@chams_builds I also like to take a moment and look few months back on my projects