How to change GQL_HOST in runtime

[Henvy-Mango]

This is my nuxt.config.ts file.

export default defineNuxtConfig({
  modules: ["nuxt-graphql-client"],
  runtimeConfig: {
    public: {
      GQL_HOST: '',
    },
  },
});

This is my .env file.

GQL_HOST=http://myurl.com/graphql

How can I change the GQL_HOST dynamicly?
Like this NUXT_PUBLIC_GQL_HOST=https://new-graphql-api.com node server/index.mjs but it don't work.