Tomorrow is already the deadline for the third edition of #WITS, the Workshop on the Implementation of Type Systems, colocated with #POPL 2024 in London. The page limit is one page, but just a single-paragraph abstract with an interesting idea for a talk is also very welcome! In particular contributors to #Haskell#OCaml#Rust#Scala#Coq#Lean#Agda#Idris#Cedille#Arend#CoolTT and even #TypeScript are warmly invited to give a talk about their experiences with implementing type systems.