The librem-5 team is currently using zanata for translations. Should we stick to this it would be great to have the cli tool to upload/download translations packaged.
It's part of the zanata-platform but having just the cli tool would already be great:

https://github.com/zanata/zanata-platform

I did not file any RFP for Debian yet but it would certainly be good to have it in Debian as well. It's in Java and I did not yet check which java modules might be missing as well.