I really don’t find that to be true. I see lots of toy implementations, general philosophical discussions, hell even just man pages.
HackerNews(ycomb) is a veritable gold mine but I find the community to be a bit caustic at times.
There is a HackerNews mirror on Lemmy here that I like but not too many people comment. If I saw more activity I’d probably comment more.
Same I pivoted to PocketCasts