I am not sure I understand what it does…

Without telling me what you assume it does, I can’t judge 😄 In this case, it just adds additional entries to a samplesheet based on files it discovers in an input directory. But we could use the channel factory to monitor a particular directory and the pipeline will run on every sample that Ateria / TACA puts in there.

OR a subworkflow/local module that generates a sample sheet according to input dirs