http://dlang.org/blog/2017/05/24/faster-command-line-tools-in-d/ https://nim-lang.org/blog/2017/05/25/faster-command-line-tools-in-nim.html https://users.rust-lang.org/t/faster-command-line-tools-in-d-rust/10992/14 こんな感じで巷ではやって…