Hello,
I downloaded The Little Prince, which was translated into Interslavic (
link here, in case anyone is interested), however I cannot add
Interslavic or
Interslavic (Latin) to the book meta-data, as I get the following error:
calibre, version 8.12.0
ERROR: Unknown language: The language Interslavic is not recognized
Is there a way to create a custom language, so I can save books written in Interslavic to Calibre?
Thanks!