How change port in production and dev mode

I want to run for now vuestore on default 80 port in dev mode and production till make all nginx configuration.

i made change in

"server": {
"host": "localhost",
"port": 80,

But after “yarn installer” i get mesage “localhost:3000”.

Hi @workmagento
You need to change port in default.json in config folder for production mode.