Data collection

We developed an interview topic guide that focused on factors likely to influence the integration and adoption of TASSH within HIV clinics in Akwa Ibom, Nigeria such as the relative advantage of TASSH, alignment with existing clinic structures, patient support, and alignment with national guidelines, the perceived complexity of TASSH, and limited resources [1]. We piloted the draft interview guide for comprehensibility, flow, and meaning, with two individuals who met all inclusion criteria and were not participating in the study. The interview guide was modified based on feedback prior to use in the field. 2 experienced researchers who both public health professionals conducted the interviews with key stakeholders. Data collection took place from May 31^st to June 11^th 2021. Only the interviewer and interviewee were present during the interviews. Specifically, they asked participants to first describe their perceptions of the TASSH project, its potential impact on the workflow of staff as well as current patient experience and clinical encounters within HIV clinics. Ethical approval was obtained from The University of Abuja, Nigeria institutional review board (Approval number UATH/HREC/PR/2020/006). Written consent was obtained from all participants consistent with the procedures approved by the University of Abuja, Nigeria institutional review board prior to the interviews. Interviews were carried out until saturation. The Interviews lasted for one hour and were audio recorded. Not identifiable information was obtained from participants.