Matrix

• Polyjuice — Elixir libraries for Matrix
• Igor(on hex.pm) — Elixir framework for Matrix bots
• Operator — C++ library for the Matrix API (abandoned)
• blog posts:
  • An introduction to end-to-end encryption in Matrix and Riot
  • How secure is emoji-based verification?
• other documents:
  • State Resolution: Reloaded — a literate Haskell implementation of the State Resolution: Reloaded algorithm