This SaaS Startup Kit is a set of libraries and boilerplate code in Golang for building scalable software-as-a-service (SaaS) applications. The goal of this project is to provide a proven approach for building new SaaS that reduces the repetitive tasks in getting a new software service launched to production that can easily be scaled and ready to onboard enterprise clients. It uses minimal dependencies, implements idiomatic code and follows Golang best practices.