Ask HN: Script to run a site like HN?

I'm looking to build a site like HN as a hobby project and don't really want to start from scratch. Would anyone be so kind as to help me build a list of codebases that are relevant?

So far I have...

https://github.com/reddit/reddit

https://github.com/antirez/lamernews

https://github.com/jcs/lobsters