$ sudo npm install scrypt
$ sudo npm install -g scrypt

If want to update the scrypt package execute the command as below,

$ sudo npm update scrypt

Update package globally,

$ npm install -g scrypt

Git clone:

$ sudo  git clone https://github.com/rektide/scrypt.git

$ sudo  npm install -g ./scrypt

scrypt@6.0.3 /usr/lib/node_modules/scrypt

How to remove scrypt package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall scrypt

Basic Information of scrypt NPM Package: