The platform connecting founders, investors and talent.
Oct 2025 - Present
Open the siteI'm
Guglielmo
Vaccaro
Solo founder. I build products in public and share them even when they go wrong.
I build simple, honest, useful products. I learn in public and share everything, even the failures.
Projects
Five products. Not all of them worked out, and they are all here anyway.
Nutrition tracking you speak to, with a coach guiding you.
Sept 2025 - Present
Open the site
ExitedBitzuma
CEO & Co-Founder
Crypto news, analysis and interviews, published daily.
May 2025 - Oct 2025
Shut downSp3llbound Studios
CEO & Co-Founder
Web3 gaming studio.
Jun 2024 - May 2025
Shut down21BJ
Co-Founder
Fantasy card game for mobile, a casino with no real gambling.
Apr 2023 - May 2025
Where I post every day
Daily content on AI, tools and founder life.
14k+
followers
Instagram
@guglielmo.builds
5k+
followers
TikTok
@guglielmo.builds
1k+
followers
YouTube
@guglielmo-vaccaro
Also here
Useful links
Everything that usually sits in a bio, but on my own site.
From the blog
The latest things I wrote.
- AI
AI makes you build faster, not decide better
I use Cursor and Claude every day and they save me real hours. But speed and direction are two different things, and confusing them is the most expensive way to use these tools.
- Tool
My stack for shipping a product alone
Next.js, Supabase, Vercel, Cursor, Claude, Resend. Nine tools, what each one does, what I deliberately do not use and the order I build in when starting from zero.
- Build in public
From co-founder to solo founder, and why I build alone now
Three projects with co-founders, two shut down and one sold. Why I now work with no team, no round and no agency, what I gained and what I actually lost.