This is a great idea! Exactly what I was also thinking and started working on a side-project. Currently the project can create summaries like this [1].
Since HN Homepage stories change throughtout the day, I thought it is better to create the Newsletter based on https://news.ycombinator.com/front
So, you are getting the news a day late, but it will capture the top stories for that day. The newsletter will have high-level summary for each post and a link to get the details for that story from a static site.
Same, it was using the high quality openai voice until my account ran out of funds.. Now it's using edge-tts which is free. So far it seems like the best option in terms of price/performance, but I'm happy to switch it up if something better comes along.
I'll look into it for the next iteration! I could just take the transcript that's already on the page and put it somewhere separate from the audio.
But thinking about it a little more, what would the use case for a text version actually look like? I feel like if you're already on HN, navigating somewhere else to get a TLDR would be too much friction. Or are we talking RSS/blog type delivery?
Have you thought about automatizing hn-summaries for say what the 5 top posts are at 8 AM EST?
That would be a simple product to test the market. If successful, it could be easily extended to a weekly newsletter summary.