Thanks so much for posting this; this is indeed good feedback and a really cool project! Writing a 3000LOC simulator to top-off a Lord Of The Rings length forum novel is a beautiful thing.
As the discussion progresses here, I will be trying to split off concrete sub-threads for further discussion as it’s sensible. So let’s continue the discussion on Arrow and Parquet in Challenges with Arrow and Parquet in a (reasonably substantial) Julia Project.