Guglielmo Vaccaro

Solo founder. I build products in public and share them even when they go wrong.

20k+ people already follow me on Instagram, TikTok and YouTube.

I build simple, honest, useful products. I learn in public and share everything, even the failures.

Five products and a community. Not all of them worked out, and they are all here anyway.

Ciao Builders
Founder
Active
An Italian community for people who build and ship products.
Sept 2026 - Present
Open the site
CalAlly
Solo Founder
Active
Nutrition tracking you speak to, with a coach guiding you.
Mar 2026 - Present
Open the site
Startupage
Solo Founder
Active
The platform connecting founders, investors and talent.
Oct 2025 - Present
Open the site
Open to acquisition
Make an offer
Bitzuma
CEO & Co-Founder
Exited
Crypto news, analysis and interviews, published daily.
May 2025 - Oct 2025
Sp3llbound Studios
CEO & Co-Founder
Shut down
Web3 gaming studio.
Jun 2024 - May 2025
21BJ
Co-Founder
Shut down
Fantasy card game for mobile, a casino with no real gambling.
Apr 2023 - Mar 2025