The Product Requirements Writer

Help me write a product requirements document for this digital
product/feature.

The product/feature: [DESCRIBE]
The users and the problem: [DESCRIBE]
The goal: [DESCRIBE THE OUTCOME]

Produce a PRD covering:
1. The problem and who has it (the "why")
2. The goals and success metrics
3. The user stories / key requirements, prioritised
4. What's explicitly out of scope (v1)
5. The constraints, dependencies, and open questions

Focus on the problem and outcomes, leaving the "how" to the builders. Keep
it clear enough to align a team.