Comment by bobblywobbles

I solved this in a repository I made a few years back. By switching languages, .missing.json files are generated with the words that don't have the other-language equivalent. Then, you run this script which calls the google translate API to generate the translations. https://github.com/reZach/secure-electron-template/blob/mast...

Granted, it still suffers that it's not a human translator, but it doesn't require a LLM.