aTrain and noScribe can run locally and reduce data-transfer exposure in tools that can genuinely save hours of work in qualitative interview research. They also make methodological decisions on your behalf without telling you. If you do grounded theory, you need to know which decisions those are.
I treated a design workflow as though it were a complete research methodology. Grounded-theory techniques would have made my analysis of unexpected student responses more systematic. That is a postmortem of this thesis, not a universal verdict against design-based research.
ViLLA is an online portal of real classroom videos built for teacher education at the University of Cologne. The idea sounds straightforward. Getting there required filming actual lessons, building infrastructure, evaluating a quasi-experimental intervention, and later scaling the project. Some notes on how that went.