If you're looking to Download Sketch Lua on your Chromebook laptop Then read the following guideline.

Sketch Lua is a IOS device on the Lua language editing and operation procedures. Can be used for learning to learn Lua programming language. Contains the following functions: 1 code editor: syntax highlighting, auto indent 2 console interactive input: you can enter the Lua code directly in the console, running at a more direct, learning Lua language.