Seconded, I'd be more than willing to help, too; I've been a user/fan/evangelist of Raindrop since 2016 and would enjoy the opportunity to help the effort to expose it to a wider audience. I'm an experienced Crowdin user and have plenty of experience with l10n, enough to generate the initial .po file (or equivalent) for the framework being used if asked, but certainly the most efficient way to kickstart the translation would be by the admin within Crowdin itself. I hope we can get that done in short order and get busy with it.

Warmly,

Peter