Thanks in advance.
When default search failed me in the past, I've had some luck with experimental search projects that people have created. I'm sharing them hoping one might help you find what you're looking for:
* [Vectara](https://search-hackernews.vercel.app/) * [Hacker Search](https://hackersearch.net/) * [HN Discussion Search](https://searchhacker.news/) * [Hacker News Search](https://hn.lixiasearch.com/) * [DeepHN](https://deephn.org/)
Give them a try and see if any of these tools can help you track down the post you're looking for. Good luck!
Do you remember any keywords? Names?
Use site:ycombinator.com "keyword" on Google search, and adjust the timeline to narrow the results.
https://joeldare.com/hosting-markdown-on-github-with-neat-cs...
Edit: Err, this is probably not what you meant.
https://hn.algolia.com/?dateRange=pastYear&page=0&prefix=fal...
maybe as a defensive mechanism against ai and other scrappers.