This study focuses on improving methods to generate tendon-forming cells from human induced pluripotent stem cells (iPSCs). By studying gene activity in single cells during differentiation, the researchers mapped out the developmental steps that mimic how tendons naturally form in the embryo. They discovered that many cells were accidentally turning into neuron-like cells due to increased Wnt signaling. By adding a Wnt inhibitor at a key stage, they prevented this off-target neural development and greatly improved the efficiency of producing the desired tendon lineage (syndetome). These findings show that precisely adjusting developmental signals can enhance tendon cell production, helping advance future cell-based therapies for tendon injuries.