VeraCrypt (unofficial)

Transifex page: https://www.transifex.com/rockytdr/veracrypt-unofficial

The source strings are automatically imported in Transifex.

However, to use the translations in VeraCrypt, you should keep the header of an existing translation file! Otherwise it won't work. The language should also be changed for every string (see screenshot below).

In other words, the exported file from Transifex is not compatible before adding some changes. Full automation is not possible (at the moment)