HN is released to the public as part of the Arc language. This github account is a big deal because the last version of Arc was released in August 2009 (http://

HN is released to the public as part of the Arc language. This github account is a big deal because the last version of Arc was released in August 2009 (http://arclanguage.com/item?id=10254 http://arclanguage.com/item?id=10254).