How to download and setup expr
Open terminal and run command
git clone https://github.com/expr-lang/expr.git
git clone is used to create a copy or clone of expr repositories.
You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with expr https://github.com/expr-lang/expr/archive/master.zip
Or simply clone expr with SSH
[email protected]:expr-lang/expr.git