Use a cloud service for speech to text, like Google’s API, and you should be able to handle a pretty good number of users without breaking the bank. (I believe

Use a cloud service for speech to text, like Google’s API, and you should be able to handle a pretty good number of users without breaking the bank. (I believe they have a free tier, then pretty reasonable pricing. You’d just have to set up a rate limiter on your server to make sure nobody’s abusing it).