Officially use a single translation tool for managing translation / localization (Crowdin / Weblate)

[krestenlaust]

Translating strings and starting a new language is cumbersome, because you need to translate all tokens alone at once, to have it properly submitted.

Crowdin is a great platform, which I have a lot of experience with as a translator. They provide their services for free for open-source projects: https://crowdin.com/page/open-source-project-setup-request.