A self-hostable fitness and weight tracking app with no subscriptions, ads, or telemetry, deployable with a single Docker command. It includes over 5,000 exercises with animated demonstrations, supports weekly workout scheduling, guided workouts, rest timers between sets, automatic personal best detection, and muscle heatmaps to see training volume by body part. You can also import data from apps like Strong and Hevy, and it offers iPhone, Apple Watch, and Android versions.