I’m a huge fan of the extension and, as someone with an MA in linguistics, I’d like to offer my services in case you need help with research or annotation. Besides, I’ve been in UX localization (En–> Ru) for 4 years, so, I would be happy to localize the parts of your UI that are still in English (The Russian parts that I’ve seen read great, btw! They sound like human translation to me!) You can reach me at greentina770@gmail.com if you’re interested.