DoNamic is an online, self-guided behavioural activation program for people aged 14 to 40 years who have depression or both depression and problem gambling. In this study, the researchers described their first step in an evaluation plan of DoNamic. They interviewed 15 stakeholders about the program’s content, design, and its future uptake. The stakeholders were health care providers and decision-makers within community and government organizations. Many stakeholders liked DoNamic’s self-guided nature and believed it could be a useful resource. They had concerns about the lack of anonymity, design, and language used. The researchers made several changes as a result. They plan to continue evaluating DoNamic and demonstrate its value to users and funders.