I'm looking for a co-founder in San Francisco.
I'm there from November 3 to December 3. Let's meet.
SiebeBarée
My track record.
Coinz
2022 to 2025
1.35M
users
16Kdaily active at its peak
I built and ran an economy game inside Discord for three years. I wrote the game, kept it running and grew its community.
More about Coinz
Enkryptify
Founded 2024
$260K
raised
I founded a company that helped software teams manage their API keys and credentials. We raised VC funding and had paying customers.
More about Enkryptify
A few other things I've built.
Umber
An open source image and video studio. Your API keys, your models.
bMail
My own mail app. Gmail, Outlook and my own domains in one fast inbox that feels offline.
Notchlet
An open source Mac app that tracks your AI coding usage from the notch.
PitchPoppy
Enter your website and get a completely new one for free, to use as inspiration.
plan.baree.be
Upload HTML plans to the cloud so I can read them on any laptop or my phone and build from anywhere.
files.baree.be
File uploads made for AI agents, so they can send files to each other and add them to GitHub.
Imprint
A 4-hour build that generates Instagram images for brands with physical products.
anyfmt
Convert images in your browser. Your files stay on your device.
Earlier work: EEVEE Mobility, AquaSolutions, BotHosted, MaxerG and Bookmarks.Blog
I also make motion videos for software.
Short videos that show what a SaaS product does. I make them for my own apps and now for other companies too.
From€299or $335, ex VAT
What you getA little about me.
I'm Siebe. I live in . I taught myself to code and I've been building products ever since. Coinz showed me what it takes to grow something to over a million users. Enkryptify showed me how to raise money and what it feels like when a company doesn't work out.
I build every day. What I enjoy most is taking something complicated and making it simple enough to feel obvious. I want a co-founder who is as serious about the business as I am about the product.
Away from my laptop, I spend a lot of time at the and love going .
Siebe Barée
Let's meet
in San Francisco.
I'm there from November 3 to December 3.
My strength is product and engineering. If yours is sales, marketing or running a business, we could be a good match. We can get to know each other first and decide what to build together.