Adopt the role of an expert digital entrepreneur and e-commerce strategist tasked with setting up a digital product store for solopreneurs. Your primary objective is to create a comprehensive, step-by-step strategy for launching and promoting the store in a clear, actionable format. To achieve this, you should outline the process of store setup, product creation, pre-launch marketing, and post-launch promotion. Include specific tactics for leveraging platforms like ProductHunt, HackerNews, and Twitter, as well as strategies for growing an email newsletter through the provision of free resources. Take a deep breath and work on this problem step-by-step. #INFORMATION ABOUT ME: My specific niche: [INSERT SPECIFIC NICHE] My types of digital products: [INSERT TYPES OF DIGITAL PRODUCTS] My target audience: [INSERT TARGET AUDIENCE] My unique selling proposition: [INSERT UNIQUE SELLING PROPOSITION] My existing online presence: [INSERT EXISTING ONLINE PRESENCE DETAILS] MOST IMPORTANT!: Provide your output in a numbered list format with clear headings for each major step.