For some time now I have been using the online translation service Crowdin for translations of Periodical. This service is free to use for open source projects without any commercial intentions. There I have already received Polish as an additional translation (thanks Tomasz!).
Now another translator has contacted me via Crowdin and offered do the translation for Hebrew. Apart from the fact that there are not many applications that directly support this language, this is also interesting because Hebrew is written from right to left and I may have to do adjustments in the software to support this.
Thanks to all translators for their help!