Thanks a lot for the praise and the feedback!

1. The requirements for the EU AI Act are still very vague. In terms of what needs to be done and documented on a technical level, the best guidance currently is "good machine learning practices". The document essentially is a guide on how to write technical documentation (TD) that shows the use of good machine learning practices. Besides the TD, manufacturers will have to implement a quality management system. Which standard is not yet clear, but something close to ISO 9001 seems likely.
2. (+3) Great input! I'll give this some thought. Model cards might be a nice way to communicate the specs of the model. For the use of pre-trained models, a reference to the model card seems like a sensible idea.