An important place in the implementation of projects aiming at a zero carbon transition is given to digital technologies. Sociological insights demonstrate that the conceptualisation process of digital innovations is not only affected by decisions on technical parameters, but also social ones. The technical architecture integrated in the computer code reflects value laden considerations on issues such as different ways of structuring social interactions. There are various modes for a digital tool to exist and shape its users. Thus, it is of interest to analyse the technical considerations made by project developers at its origin.Through three case studies, this report investigates how the social construction of digital technologies (apps and internet platforms understood as sociotechnical arrangements) structures social action – and consequently impacts their uses. At first, the underlying representations of developers are analysed. The focus will be on the problem-solving capacity attributed to digital technologies through their expected role in projects. Therefore, also the needs of users as imagined by developers and their consequently assigned roles will be of interest. In a second step, the effect of these tools and how they create sociality will be investigated. Especially the distribution of social roles and agency on its users, its effect on expected and desired uses and potential barriers for use will be regarded. Observed practices that go beyond the digital and are linked to individual contexts of use can account for unforeseen impacts such as bypassing the tool. Also, the importance of intermediaries for the appropriation and diffusion of digital technologies is highlighted.