openGym
A self-hosted gym & body-weight tracker you actually own
...Its exercise library contains searchable movements with animated demonstrations and support for strength, bodyweight, timed, and cardio exercises. Workout sessions can preload previous weights, detect personal records, run rest timers, and apply configurable progression rules. The application supports passkey authentication, offline use, cross-device synchronization, and installation as a home-screen app. Deployment is designed to be straightforward through Docker Compose without subscriptions, advertisements, or dependence on an external fitness service.