CéuCéu is “Structured Synchronous Reactive Programming” According to its web page, Céu supports synchronous concurrency with shared memory and deterministic execution and has a small memory footprint.The most used programming languages Ruby JavaScript C Emacs Lisp PHP Perl Go Lean (proof … C Sharp Haskell Dart Clojure Vim (text … Erlang TypeScript OCaml Rust Visual Basic … Objective-C Swift Julia WebAssembly Python F Sharp Smalltalk Scala Apache Groovy Fortran Lua