Getting jacked with calisthenics is one thing, doing it in 68 weeks is a whole different level of dificulty.
But it’s not impossible depending on where you’re starting from.

The key is to speed up the training process so you’re working your muscles more frequently and creating more adaptation in the short time. You also want to use lowskill exercises that make it as easy as possible to challenge your muscular work capacity with basic push, pull, and squat movement patterns.

All calisthenics and isometric resources available at https://www.reddeltaproject.com