And... Hacker News. I can't find it now, but I'm pretty sure pg talked about how Hacker News was, at least initially, REPL-centric (not in those words) EDIT: h

And... Hacker News. I can't find it now, but I'm pretty sure pg talked about how Hacker News was, at least initially, REPL-centric (not in those words) EDIT: http://pchristensen.com/blog/articles/are-you-this-agile-paul-graham-changes-hacker-news-while-you-wait/ http://pchristensen.com/blog/articles/are-you-this-agile-pau... > This is a step beyond that. I'm not even doing releases; I've been pasting the changes into the running server's repl. https://news.ycombinator.com/item?id=99586 https://news.ycombinator.com/item?id=99586 Obviously it's a bit extreme to be hacking on the production site with no version control etc, but HN was a lot smaller back then.