Happy Bootstrapping Newsletter

alfima.io: How Alexander Bünk Shut Down His 42-Employee Agency and Built a €63K MRR SaaS in 7 Months

"Happy Bootstrapping" Volume #42

Jan 12 • Andreas Lehr

kcalculator.de: How Jannis Kuhrt Builds B2B SaaS Alongside Full-Time Job and Family

"Happy Bootstrapping" Volume #41

Jan 5 • Andreas Lehr

3

December 2025

Marswalk: How Victor Founded a Gen Z Agency at 20 and Makes 5 Million Euros Revenue

"Happy Bootstrapping" Volume #40

Dec 23, 2025 • Andreas Lehr

2

Zenbox: How Konstantin Built a Hardware Product with AI and Made 10,000€ Revenue

"Happy Bootstrapping" Volume #39

Dec 15, 2025 • Andreas Lehr

1

Finally Freelancing: Maruan Builds Germany's Largest Freelancer Consultancy with Over 1,200 Clients

"Happy Bootstrapping" Volume #38

Dec 8, 2025 • Andreas Lehr

2

From Silicon Valley to Heilbronn: How Oliver Hanisch Builds a Startup Ecosystem with the Campus Founders Team

"Happy Bootstrapping" Volume #37

Dec 1, 2025 • Andreas Lehr

2

November 2025

13 Years of Clockodo: How Moritz Hofmann Reached Over 500,000 Euro MRR with 35 People

"Happy Bootstrapping" Volume #36

Nov 24, 2025 • Andreas Lehr

1

10 Years of Silberthal: How Matthias Schnizler Reached 8-Figure Revenue with 15 People

"Happy Bootstrapping" Volume #35

Nov 17, 2025 • Andreas Lehr

2

7.5 Years of Duschbrocken: How Johannes Built a Profitable Sustainability Brand with Solid Shampoo

"Happy Bootstrapping" Volume #34

Nov 10, 2025 • Andreas Lehr

From Laser Physics to Seven-Figure Revenue: Nicolai Klemke Builds Neural Frames into an AI Music Video Tool

"Happy Bootstrapping" Volume #33

Nov 3, 2025 • Andreas Lehr

October 2025

"Sitting is the New Smoking": How Johannes Kettmann Brings His Walking Pad to Kickstarter After €30,000 Investment

"Happy Bootstrapping" Volume #32

Oct 27, 2025 • Andreas Lehr

1

$30,000 Per Month: Sebastian Röhl's Journey to Successful Indie Hacker with HabitKit

"Happy Bootstrapping" Volume #31

Oct 22, 2025 • Andreas Lehr

2