kages by virtue of compiler authors now also being Gren-developers.\\n\\nIn fact, the mentioned rewrite of the FileSystem API is a direct consequence of the compiler needing more functionality\\nthan what was previously available.\\n\\nWe'll talk more about the importance of Gren-in-Gren at a later time.\\n\\n## The book has received a face lift\\n\\nJustin Blake has contributed big changes to [the book](https://gren-lang.org/book), which serves as our language guide.\\n\\nNot only has he filled in empty ch