Digital history projects can act as boundary objects that coordinate different incentives and allow participation across disciplines. They bring together researchers with different goals, like tool developers focused on technology, historians interested in research, and others focused on building the tool. While the official goal is to build a new tool for historical research, in reality the tool may not be stable enough for research in the project timeframe. This leads the different communities of practice within a project to shape it individually according to their own needs and incentives. Digital history projects require coordination to manage risks and expectations when incentives do not directly align with the overall goals of the project.