This document introduces Leadermaker, a new app designed to help individuals improve their leadership skills and get more satisfaction from their work. It argues that leadership is defined more by behaviors than skills or position. Leadermaker uses peer feedback and tracking of leadership behaviors to help users develop key habits like fostering relationships, sharing knowledge, and listening. It aims to spread impact by encouraging users to invite colleagues to also improve their leadership. The goal is to make workplaces better by having more people actively support each other through leadership behaviors.