There are two licenses for this software you can choose of:
you can download COPYING.Postcardware using this link:
https://github.com/PascalCorpsman/Software_Licenses/blob/main/COPYING.Postcardware.txt
or
you can download COPYING.modifiedLGPL using this link:
https://github.com/PascalCorpsman/Software_Licenses/blob/main/COPYING.modifiedLGPL.txt