CodeRefinery is a project funded by Nordic e-infrastructure collaboration (NeiC) supporting students and researchers across all research domains by teaching "good enough" FAIR (Findable Accessible Interoperable Reproducible) research software development practices. Good documentation of shared code is important for reproducibility of code and associated data. Among other activities, the project has enabled to conduct interactive hands-on online and free workshops for over 500 registrants at a time. The workshops are live streamed and combine co-teaching, asynchronous questions and answers as well as parallel local meetups. DTU has hosted a local physical classroom with helpers and up to 25 participants. We encourage other universities to become hosts of such classroom sessions and would like to share good advice on this. The poster is presented at the National Reproducibility and Research Data Event on 10 June 2026 at DTU Library, Denmark.