How I Built a Financial Dashboard for Startups

A solo founder built culta.ai, a financial management platform for early-stage startups, using Next.js 15, Prisma, PostgreSQL, and Stripe. Key architectural decisions included multi-entity support scoped via React context and 17 interactive financial calculators used as an SEO-driven growth channel. The author shares lessons on data modeling, growth strategy, and Next.js App Router performance benefits.