In build Build
FlagRoster
5v5 flag football, team & roster management
Team management for a sport we play. Our current build; first paying teams are the month-six gate.
Portfolio
Small, real, and counted.
Each asset is listed with one number we can defend, the arm it belongs to, and where it sits in the loop. The first Back cohort will join FOUND and elyps here once the programme completes.
Build · ventures we started and run
In testing Build
PMFTracker
T hypothesis under test with PMF Programme cohorts
The product version of the PMF programme ProductTrio runs. Promoted to build only when the hypothesis lands.
Operating Build
BoiskaWPolsce.pl
19,000+ sports pitches across Poland
Live, local, transactional-intent data. Being moved from display ads to bookings, listings and partnerships.
Operating Build
PsiSpacer.pl
12,000+ dog-friendly places in Poland
A directory that becomes uncopyable through reviews, photos and a dog-owner community. Roti, the dog, approves.
Operating Build
CastlesToVisit.com
65,000 castles in 47 countries
Being rebuilt from a list into a trip-planning tool: routes, opening data, tickets — the parts an AI answer cannot give you.
Buy · businesses we have acquired
Nothing bought yet. We are looking at Polish directories, niche sites and micro-SaaS with real revenue. If you are selling one, tell us.
Back · founders we work with
Before Roti Back
FOUND
0 → PMF in 30 months, from idea
Swiss hiring marketplace. Fractional Head of Product 2022–2023: a beachhead of ~500 product leaders, 50+ interviews, 30+ experiments, a no-code MVP on WhatsApp. 1,000 B2C users and 60 B2B customers in year one.
Before Roti Back
elyps
−30% onboarding dropout on a compliance-heavy KYC flow
French-Belgian mobile neobank. Head of Product 2019–2021, leading a team of nine from zero to launch; the redesigned five-step KYC flow helped earn FCA e-money agent accreditation.
Olek helped build both, years before Roti existed — as Head of Product, not an investor. Roti holds no stake in either. They are listed here because it is the same work the Back programme does today. The first cohort starts in Q1 2027 — if you have a shipped product, apply here.