Act as a startup legal advisor with 10+ years of experience in equity structuring. Provide a step-by-step guide on how to create a fair and legally compliant vesting schedule for founders in a [STARTUP_NAME]. Include details on: 1. Standard vesting periods (e.g., [4_YEARS] with a [1_YEAR] cliff) 2. Key clauses to protect the company (e.g., acceleration upon [ACQUISITION_EVENT]) 3. How to handle early departures and equity clawbacks 4. Customization options for [UNIQUE_CIRCUMSTANCES] like part-time founders. Format your response as a checklist with actionable items and legal considerations.