Let's leave the spreadsheets to the people on Wall Street. Statcat was built to help fantasy experts and novices alike easily manage their rosters and make decisions based on numbers, not hunches. Although statcat is starting with just basketball, we have football, baseball, and hockey in the works.
Statcat's backend was built with GraphQL + nodejs using Prisma's data layer API. On the frontend, it uses React with Apollo, and most of the components are hosted on Statcat's Storybook: https://adamgobes.github.io/stat-cat