So, it takes a bit of work. You have to extract the text, and proof-read it, since often the online copies that were OCRed and whatnot have errors and typos in them, and occasionally if you're using an AI voice, it'll trip up on pronunciation, so you have to edit the mispronounced words and replace them with a more phonetic rendering, etc. So, the actual GOOD tools available, day and night from the robo-voices they used to have ... those are not free, but you have to pay for them. So there's some cost in time and money, but the payoff is huge. If one person were to take care of, say the NT and tens of thousands are able to listen to it while doing other things, working, etc. ... then the time is well worth it.