npx mddb DirOne/ dir_two/ fails as it thinks the second is a config file.

npx mddb "DirOne/ dir_two/" doesn't work, nor does a semi-colon instead of a space as a separator.

I could do them one by one in a python loop and with "late answer" from https://stackoverflow.com/questions/80801/how-can-i-merge-many-sqlite-databases could then merge them all into single ./markdowndb

If I do them one at a time like so:

npx mddb DirOne/ 
npx mddb dir_two/

Then only the last one's data is in the ./markdowndb DB