Building FoxyInvoice — Chapter 2: Product thinking — pick a real problem, price it, position it

This series is written in the open, from a real production system. This chapter is the product thinking behind FoxyInvoice: why invoicing, the competitor map, and the pricing promise. [All chapters and diagrams live in the public repo.

Source: [Dev.to](https://dev.to/seolith/building-foxyinvoice-chapter-2-product-thinking-pick-a-real-problem-price-it-position-it-b68)