Hello:
I have uploaded a script to the Siril repository that allows you to batch process different Siril tools in the sequence you define and apply them to as many files as you want in the same or different directories.
You can download and try it at:
https://gitlab.com/antonioher/siril-scripts/-/blob/patch-1/processing/BatchWorkflow.py
I welcome suggestions for improvements and reports of errors.
I think it could be an interesting tool for repetitive tasks in linear processing.