I can tell you our current thoughts on why we are using a YAML also at the moment (which might not be the user friendliest): - our idea was to use a YAML file to define the tags - a YAML file is readable enough to change it a little bit and get results - but more importantly, it is really easy to genreate it automatically, lets say from a .csv file / SCADA export. One could put the .csv into chatgpt and give our example yaml into it, and would receive the python code to convert the .csv with 10000s of tags into our yaml file