I haven't done a showHN yet because it's not quite ready but you can see where it's at here:
https://news.gipety.com/hn/10842381/k/218/s/three-years-as-a...
I think it would be quite a nice way to give a second life to classic episodes of past showHNs and askHNs.
I've been 'summarising' a lot of articles using NotebookLM's new feature and publishing them as podcasts episodes here: https://open.spotify.com/show/0C8DGPdYwZQ1cbvQsnvO6t
I've been using their service to easily draw out the key points and if the episode is a good one then I publish it on the feed.
I do think that for specific content, that a lot of gold is stored within the comments sections and reading those actually gives more insight than the article itself so I've been planning on doing a few which draw off comments from either a reddit or hacker posts which link out to some post. I'll probably do one from reddit first. Probably science focused.
Finding the right content to use for the podcast is quite important and I'm trying to figure out if there is a way to involve the community. Currently I host the audio files and GitHub and anyone is invited to contribute to that.
I checked out your Spotify and there is some good content there but I imagine it will be hard to rank on there.
Would you be interested in collaborating? I am based in the UK and I have some ideas around location based podcasts as well.