You want Build time use .env setting context. Two way:

  1. source .env
    package.json > “build”: “source .env && nuxt build”

  2. eval $(grep ‘^NUXT_’ .env)
    package.json > “build”: “eval $(grep ‘^PROD_’ .env) && nuxt build”
    ^RROD_ can replace by yourself

.env file inside
PROD_API_URL=https://ooxxooxx