\section{Introduction} E-government projects differ from others due to their complexity and extension \cite{anthopoulos2016egovernment}. They are complex because they combine construction, innovation, information \& communications technologies, politics, and social impact. Their extension, on the other hand, is related to their scope, target audience, organizational size, time, and the corresponding resistance to change. Government-academia collaborative projects may be treated as an alternative to create novelty for e-government projects and to meet the needs of society. This collaborative work has challenges, such as organizing the collaboration project, aligning goals, synchronizing the pace of between government and academia \cite{anthopoulos2016egovernment}, and overcoming the failure trend of e-government projects \cite{goldfinch2007pessimism}. Poor project management is one of the causes of projects failures in the government \cite{anthopoulos2016egovernment} which in turn grows into a critical issue when government and academia combine efforts to develop an e-government solution. Academia commonly works on cutting edge of technology while the government is still relying on traditional techniques. Changing the development process in large-size institutions represents an organizational disturbance with impacts on structure, culture, and management practices \cite{nerur2015challenges}. As a result, government and academia have to harmonize their view to increasing the chances of success in projects with tight deadlines and short budgets. An option for harmonizing different management approaches, it is bringing procedures from Free Libre Open Source (FLOSS) ecosystems and agile. Open communication, project modularity, the community of users, and fast response to problems are just a few of the FLOSS ecosystem practices \cite{capiluppi, warsta}. Individuals and interactions, Working software, Customer collaboration, Responding to change \cite{beck} are the core of agile development. The intersection between FLOSS and agile can harmonize different process management and improves the cooperation of distinct teams. In this work, we investigate a set of practices from a 30-month government-academia project that helped to harmonize the differences between government and academia management cultures. We trace the best practices based on FLOSS ecosystems and agile methodology. Finally, we validate the set of methods extracted from the project by collecting data from the project repository and by surveying the project participant points of view.