From Time Zones to Thank-Yous: The Unexpected Evolution of UPT

Hey indie hackers 👋

A few months ago, I built UPT — a scheduling tool to simplify meeting across time zones.
Japan, the US, the Netherlands — it was messy.

But while using it, something surprising happened.
People started using it not just to share availability — but to deliver emotions.

So I leaned into that.
I added visuals, animations, embedded maps, even call buttons.

Now, it’s something else entirely:
A LiveCard — a sharable capsule that feels more like a gift than a message.

Would love your feedback — especially if you’ve ever built something that evolved beyond its original purpose.