AARRR Demo tool for visualization and learning about Growth Hacking "pirate" metrics, aka AARRR - Acquisition, Activation, Retention, Revenue, Referral. experimental https://aarrr.mycolaos.com Roles ProductEngineeringDesignResearch Tech stack TypescriptReactTailwindViteWindsurf Active development finished Ideation and development Apr 6, 2026 - Apr 11, 2026 Details writing in progress