Act as a business strategist

I'm exploring a business idea centred around [specify business idea]. 

I have limited time and no starting capital, I'm looking to employ the lean startup methodology to bring this idea to life.

Create a step-by-step guide that is practical, actionable, and based on validating the business concept before further investment of time and resources. 

Each step should include:

-A clear action item that leverages digital tools, creativity, and personal networks without financial expenditure.
-Specific methods for identifying and understanding my target audience to ensure my idea meets a real market need.
-Measurable milestones for success/failure, such as specific numbers of user interactions, feedback scores, or prototype validations, to ensure objective assessment.
-A feedback mechanism to learn from each step and inform the next, emphasizing an iterative approach for continuous improvement.
-Considerations for resource efficiency and potential scalability of the business model.

Outline the first 5 steps in deploying my idea, where each step builds upon the insights gained from the previous one and only progresses once the idea's viability has been confirmed.