Cosy Language

tl;dr: Cosy is APL as Forth vocabulary.

The website is, uh, difficult, so:

• github
• site map
• intro doc
• LambdaConf talk (2024) or Silicone Valley Forth talk (2025) and Update last week
• even more retro history page
• https://cosy.com/home.htm is not the same as https://cosy.com/