android – Flutter: Speech to textual content for a language that does not exist on mobiles however use Russian alphabits

I wish to create a language instructing app that makes use of speech recognition in some elements, similar to Duolingo. The language would be the Chechen language, it makes use of the Russian alphabits, however the language will not be supported by programs. How can I make the app acknowledge the audio for an unsupported language? If including a language from skinny air is feasible, what would I’ve so as to add, add an entire dictionary, or simply map every phrase I am utilizing in my app with an audio file, so when somebody has to say one thing for a selected phrase, the app will examine his audio from mic with saved audio and see in the event that they match to present him credit score if stated appropriately?