not running in the back ground

I have two lots of programs i need to run in the background but when i close the terminal they close down.

Can anyone help with this

First one is as follows

cd nomp
nvm use 5.10
npm install -g nohup
nohup node init.js

second one is as follows

cd explorer
nvm use 12.14.0
npm install -g nohup
nohup npm start