Pginer-WMF, can this extension use other engines? Сan we now take it and turn it on ru.wikipedia.org but adding localy translator yandex and/or google?
Topic on Talk:Content translation
Yes, this platform was designed to support multiple translation backends. Apertium is just the first one. It is also designed to be useful without any machine translation service.
We are also going to make sure that ContentTranslation is useful without plugged-in machine translation service, simply as a side-by-side translation editor. Some users have found it useful enough to create some articles in Polish and Hebrew, even though no machine translation is available for these languages at the moment (see Content translation/Published pages).