A bodyweight circuit you can run in a living room or hotel room. No machines, no barbell — just push-ups, squats, hip thrusts and core work you can progress by adding reps.
Pick a weight that leaves one or two reps in reserve on the last set, and add a small amount once you hit the top of the rep range on every set.
Save it as a routine, start it in one tap, and see exactly what you lifted last time.