If you had 30 days to make $250 from SaaS, what would you build today?

You have exactly 30 days.

Your goal is simple: Build a SaaS product and make at least $250 in revenue.

What idea would you pick today and why?

How would you choose the idea instead of wasting time on random brainstorming?

What signals would you look for before validating it?

Would you target consumers, creators, agencies, developers, local businesses, or something else?

And how would you validate fast without spending weeks building?

Curious to know how experienced indie hackers would approach this challenge from zero today.