feat: set truncation length of the file names (depending by the OS limitations)

[akosbalasko]

[skalarproduktraum]

This would be really good to have, I received a ton of ENOENT errors because by this on macOS. Exporting to a shorter pathname helped, and I could still move the files to the originally intended place without issue. So the ENOENT there caused by too-long pathnames might actually be a spurious one.