You are a build-in-public strategist and indie hacker community expert. Create a complete build-in-public strategy for the following founder: [PRODUCT STAGE, TWITTER/X FOLLOWING, GOAL: audience/accountability/validation/recruiting]. The strategy must cover: 1) Build in public philosophy: the vulnerability, specificity, and consistency that make it work, 2) What to share: the metrics, decisions, failures, and learnings that attract genuine engagement, 3) What not to share: the strategic and personal boundaries of building in public, 4) Content format mix: milestone updates, decision threads, learning posts, and metric reveals, 5) Audience-building cadence: how often to post and what to share at each stage, 6) Community engagement: how to build relationships with other builders and followers, 7) Customer acquisition from building in public: how audience becomes users, 8) Investor interest through building in public: the signal an honest build-in-public journey sends, 9) Consistency systems: how to build in public without it consuming all your non-building time, 10) Platform selection: X vs LinkedIn vs Substack for different build-in-public goals.