Rather than creating parallel mental health services, the SEEK-GSP model integrates group psychotherapy into existing HIV care systems. In Uganda, this meant embedding GSP into HIV treatment clinics, adding mental health indicators to HIV treatment cards, and formally including GSP in the National HIV Treatment Guidelines. Once mental health is normalised within HIV platforms, scale-up becomes more feasible, costs are shared, and the services become part of routine care rather than add-ons. One of the most practical innovations of SEEK-GSP is that lay health workers are trained to lead the group therapy sessions, while facility-based health staff provide supervision. For policymakers, the actionable insight is that with the right training, tools, and supervision framework, non-specialists can deliver effective psychosocial care. This means that scaling mental health services does not require proportionate increases in psychiatrists or psychologists—but rather investment in capacity building and oversight.