FitNotes

Developer Duarte Santos has released openGym, a self-hosted fitness tracker written in JavaScript that lets users plan routines, log workouts including supersets, warm-ups and cardio, and monitor which muscles are trained, fatigued or detrained. The tool supports imports from popular apps FitNotes, Strong and Hevy, offers passkey login, and keeps all data on the user's own server — a privacy pitch that is drawing interest among self-hosting enthusiasts.