What is the Hacker News technology stack?
My answer to What is the Hacker News technology stack? on Quora
It’s written in Arc, a Lisp variant created by Paul Graham. I believe it uses the file system for storage rather than a dedicated database.
There appears to be a copy of an old version of the site included in the Arc download as example code—there’s a mirror of that on GitHub here: https://github.com/wting/hackernews