Day 11 building AffiSpark.

This week looked like feature work: promo-code attribution, a public preview, and a real walkthrough flow.

I do not think it was feature work.

I think early product work is usually proof work.

Users are not asking "what else does it do?" first.

They are asking "why should I trust this part?"

Promo codes proved attribution survives messy checkout behavior.

The preview proved pricing is visible, not blind.

The walkthrough form proved the CTA can be completed in-browser.

My current rule: find the sentence a user needs to believe before paying, then build the shortest thing that makes it true.

Founders: what was the first piece of proof you had to build before your product started making sense?