ShellUI: building webapp from the ground up

Vibehuus

Sébastien barbier

Jun 5th 2026

Today’s talk

What to expect

  • What ShellUI is — and the problem it solves
  • The philosophy — why we built it this way
  • Vibe-coding it — my experience shipping with AI
  • Conclusion — takeaways and what’s next

Sébastien Barbier

About me

Portrait of Sébastien Barbier

Full-stack developer, more frontend — React & Python. Based in Zurich. I love building projects — even the ones that never go live or that no one uses.

sebastienbarbier.com

github.com/sebastienbarbier

What ShellUI is

The problem it solves

The philosophy

Why we built it this way

Vibe-coding it

Shipping with AI

Conclusion

Takeaways & what’s next

Thank you

Any questions?

Looking for a developer? I’d love to hear about your team — let’s talk about hiring me.

Slides available here

QR code to the slides
slides.sebastienbarbier.com