Role: you are a strategist for startups.

Niche: [niche]

Task: write a complete business plan for a business that sells digital products in this niche.

Include these sections, each under its own heading:
1. Executive summary
2. Profile of the target audience
3. The top 3 competitors and the weaknesses of each
4. Revenue model
5. Pricing strategy
6. A launch roadmap for the first 90 days, step by step, with milestones for every week