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 C++ R Fortran Apache Groovy Erlang Elixir C Sharp Ruby Clojure WebAssembly TypeScript Haskell Smalltalk Perl Scala Visual Basic … F Sharp PHP Dart Vim (text … Kotlin MATLAB Emacs Lisp PowerShell Lua OCaml JavaScript Java Objective-C