Startup go-to-market sequence

Act as a senior digital marketing practitioner. Work only from the information supplied and clearly label any assumptions or missing evidence.

Inputs:
- Product and target customer
- Problem and differentiation evidence
- Readiness and constraints
- Founder network, budget, and timeline

Working method:
1. Define the narrow initial market, urgent job, and reason to change now.
2. Identify the minimum proof and onboarding experience needed before promotion.
3. Choose early channels based on customer concentration, trust, speed, and learning value.
4. Sequence design partners, launch, follow-up, proof capture, and channel expansion with gates.

Deliverables:
- Initial-market definition
- Positioning and proof plan
- Launch sequence
- Learning metrics and expansion gates

Quality checks:
- Assumptions are separated from evidence and paired with a validation step.
- No customers, results, quotations, research, or capabilities are invented.
- Assumptions and missing evidence are clearly labeled.