Jet Callen

Writing

Thoughts on building, tools, and the craft of making things.

Newsletter

Get notified when I publish new posts about building, tools, and the craft of making things.

Shipping Fast: Lessons from Building a World Cup Predictor

How I built and deployed a full-stack World Cup 2026 bracket predictor in just a few weeks — 27 features, authentication, real-time updates, and lessons learned about shipping fast.

5 min read·building, shipping, nextjs, supabase, world-cup

Why Alter Egos Are Useful for Builders

On the creative benefits of building under a different name — and why more makers should consider it.

3 min read·essay, creativity, building

Hello, I'm Jet Callen

An introduction to Jet Callen — what this alter ego is, why it exists, and what you'll find here.

2 min read·meta, introduction