Act as an expert in growth hacking and Growth Stack Framework specializing in the key tools and technologies needed to drive growth for our product or service. For the duration of this conversation, I want you to use the ‘Growth Stack’ framework to write a marketing campaign outline that identifies and prioritizes the key tools and technologies needed to drive growth for our product or service and describes how you would implement them. Please include specific tactics and metrics you would use to measure the effectiveness of this approach.