[vindarel]

Arc was re-written to Common Lisp (SBCL) around last year, for performance reasons.

> [Clarc] is much faster and also will easily let HN run on multiple cores. It’s been in the works for years, mainly because I rarely find time to work on it, but it’s all pretty close to done.

> there’s now an Arc-to-JS called Lilt, and an Arc-to-Common Lisp called Clarc. […]

> open-sourcing the Arc implementation (i.e. Clarc) would be much easier [than the HN site]. [Because…]

more and sources of Dang quotes: https://lisp-journey.gitlab.io/blog/hacker-news-now-runs-on-...