ENTREPRENEUR & DEVELOPER

I build digital businesses
- my own and for clients.

Online shops, lead-gen sites & apps.
Using AI to ship in days, not weeks.

Let's Work Together

My business card

Marc Lattermann

Entrepreneur & Developer

Cavess

Marc Lattermann
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Core Values

What I stand for

01

Act Now

Speed matters. Failing and learning are part of the process - I'd rather do it sooner than later. Fast responses, fast work, finding solutions to speed things up. This is what I value in myself and the people I work with.

02

Be Honest, Stay Kind

If you mess up, say so honestly. Otherwise things will take a bad turn eventually. No one ever gets something good by being a dick about it. There's no reason to be rude. Even in stressful situations, dishonesty and rudeness only make things worse.

03

Own It

If you do something wrong, stand up for it. Learn from your mistakes and do it better next time. And when you achieve something amazing - own that too. Both sides matter. Take responsibility for failures and credit for wins.

Case Studies

Real results from projects I built

Matratzenhandel.de

Online mattress marketplace capturing B2B and B2C demand

Matratzenhandel.de Homepage Homepage Design
Matratzenhandel.de Growth Chart Traffic Growth

Built from scratch to capture search demand in the German mattress market. Steady organic growth through targeted SEO.

MD Objektmöbel

B2B furniture platform for commercial projects

MD Objektmöbel Homepage Homepage Design
MD Objektmöbel Growth Chart Traffic Growth

Targeted commercial furniture buyers with a clean, professional platform. Consistent growth in B2B traffic and inquiries.

What I've Built

Chrome Extension Active

DBTool.dev

Powerful database viewer and editor. Load multiple SQLite databases, CSV, JSON, XML files. Execute queries, visualize data, compare schemas.

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Chrome Extension Active

FaviconDownload.dev

Download favicons from any website instantly. One click, multiple formats. Simple tool that does exactly what it says.

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Lead Generation Active

Reitplatzbauen.de

Built in one week. Focused on the riding arena building niche. Capturing leads, earning commissions.

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E-Commerce Active

Matratzenhandel.de

B2B supplier of mattresses, beds and bedding to hotels, hostels and accommodations.

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E-Commerce Active

MD-Objektmöbel.de

Specialized in school furniture. Direct supplier to educational institutions.

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E-Commerce Active

Metallspind-direkt.de

Metal lockers for gyms and schools. Boring product, steady revenue.

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Chrome Extension Active

MSGFileViewer.com

Chrome extension for viewing MSG and EML files. People search MSG-related terms 80k times/month.

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E-Commerce In Development

Baustoffhandel.de

Construction materials marketplace. Testing demand before full launch.

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E-Commerce In Development

Einrichtungsheld.de

B2B office furniture. Companies need bulk orders, not retail sites.

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AI Tool

Pianii.com

AI piano teacher. Listens to your playing, shows what to fix.

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Physical Product On Hold

Pasture Shelters

Built 2 prototypes. Physical products = harder than digital. Lesson learned.

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B2B Distribution

Vape5 E-Shisha

Sold vapes to 50+ gas stations. Good margins until regulations hit.

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Service Business

Speaker Rental Service

Rented JBL speakers for events. Easy money in college.

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Crypto/Tech

Crypto Mining Farms

Ran ETH, Chia, HNT farms. Timing matters more than tech.

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AI Tool

SayNext

Voice-controlled PDF reader. Cool tech, zero market need. Failed fast.

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