github.com/red/red (go): Red is a next-generation programming language strongly inspired by Rebol, but with a broader field of usage thanks to its native-code compiler, from system programming to high-level scripting and cross-platform reactive GUI, while providing modern support for concurrency, all in a zero-install, zero-config, single 1MB file! 
Keywords: compiler|cross-platform|gui|interpreter|language|native|programming-language|reactive-programming|rebol|red|repl|scripting-language|toolchain