Abstract This paper explores how interdisciplinarity, collaboration, and participation are being re-imagined in large-scale digital cultural heritage projects, using the Congruence Engine project as a case study. It examines how the interplay between the inherently collaborative and interdisciplinary nature of Digital Humanities (DH) and the principles of Systemic Action Research (SAR) shapes the project’s practices. In particular, it focuses on infrastructure, documentation, and communication, as well as the development of creative collaborative spaces within the project. These ways of working together in inter- and multi-disciplinary modes, as developed through DH and SAR, offer valuable insights not only into technological innovation but also into the organizational and social models that can bridge human and computational ways of working.