Forty years old, twenty on the mat, and no program that fit
I am a third-degree black belt aikidoka and I have been a martial artist for twenty years. I am not a certified personal trainer. I built this because I needed it and could not buy it.

What I actually needed
Aikido asks for things a gym program rarely trains together. You need to be strong enough to be immovable, loose enough to be thrown and get up unharmed, springy enough to absorb and redirect, and resilient enough to do it four times a week for another two decades. Strength alone is not the goal. Neither is flexibility. The goal is a body that tolerates load in every position it might end up in.
Off the shelf, I kept finding two of the four qualities and an expiry date. Strength programs that ignored tissue. Mobility programs that never loaded anything. Recovery content that was mostly gadgets. And almost all of them written as a twelve-week transformation, which is the wrong unit of time for a life.
What I refused to compromise on
It must never end. Sixteen-week macrocycles that roll into the next with recalculated numbers and rotated variants. No finish line, no 'what now'.
Rest must be structural. The fourth week of every block is an unload, and I made it impossible for me to override on the main lifts — because I know exactly what I would do on a good day.
Every exercise must be drawn. I genuinely cannot reliably identify exercises by name. So every movement in the app comes with a picture and a plain-language description of what to physically do. Fifty-four of them, regressions included. That constraint improved the whole thing.
Connective tissue gets its own block. Not a stretch tacked on when something hurts. Hangs, isometrics, slow eccentrics and loaded carries, in every session, at a progression rate that looks almost timid on paper.
It must be honest about evidence. Where the research is strong, the site says so. Where it is six volleyball players or a blood marker in a lab, the site says that too. I would rather train something plausible and label it plausible than sell it as settled science.
Who it is for
Someone with training history, a barbell and four days a week, whose limiting factor is no longer motivation but absorption. If you are 22 and made of rubber, you will make faster progress on something more aggressive. If you are 40 and have already lost a month to a tweak you saw coming, this is written for you.
Read this before you train. I am not a certified personal trainer, a physiotherapist or a physician. Rhyno is what I built for myself, shared as-is. The disclaimer spells out exactly what that means for you.