Crystal is a Ruby inspired compiled language, allowing it to run blazingly fast with a very low memory footprint. It uses LLVM for emitting native code, thus making use of all the optimisations built into the toolchain.<p>Website: <a href="https://crystal-lang.org/" rel="nofollow">https://crystal-lang.org/</a><p>Github: <a href="https://github.com/crystal-lang/crystal" rel="nofollow">https://github.com/crystal-lang/crystal</a>