picol: A Tcl interpreter in 500 lines of code
It appears you've provided a link to a GitHub project and a discussion on Hacker News, but no actual article text. Based on the information, here's a possible summary for a newsletter: "Salvatore Sanfilippo (antirez) has shared a new project called 'picol' on GitHub, which has garnered significant attention and discussion on Hacker News. With 92 points and 45 comments, the project seems to have sparked interesting conversations among developers and tech enthusiasts. To learn more about picol and join the discussion, visit the GitHub repository and Hacker News thread." If you provide more context or information about the article, I'd be happy to help with a more detailed summary.