I’m actually working on a toy payment processor for fun and to learn some new tech. The tech I’ve chosen: - Postgres for the DB - Redis for caching + queues

I’m actually working on a toy payment processor for fun and to learn some new tech. The tech I’ve chosen: - Postgres for the DB - Redis for caching + queues - Go for the customer-facing backend services - Rust for the bank-facing services - gRPC for internal communication - TypeScript + React for the frontend checkout app - HashiCorp stack for deployment