Going into this article I thought it would be a site that captures TV audio streams and runs a speech recognition, and how does it handle the computing and potentially SR API costs. But - spoiler - it turns out it captures closed captions provided by TV networks and saves them.
That struck me (a) as an example of something relatively simple that has a huge importance - keeping politicians accountable and governance transparent and (b) an example that accessibility technologies - while hugely important for differently able people - are important for much wider audiences as well.