Hi I am new to ORY kratos, my use case is very simple, I need to self host ory kratos and use its API to add auth on my custom ecommerse application. I need to keep the db as postgres, tried quickstart-postgres.yml https://www.ory.sh/docs/kratos/quickstart. later was trying to use this https://github.com/ory/docs/tree/master/code-examples/protect-page-login/react with my self hosted instance. Can someone point what does REACT_APP_ORY_URL should be? from my undertanding it should http://127.0.0.1:4433 from the quickstart.yml

version: '3.7'
services:
  kratos-migrate:
    image: oryd/kratos:v1.2.0
    environment:
      - DSN=sqlite:///var/lib/sqlite/db.sqlite?_fk=true&mode=rwc
    volumes:
      - type: volume
        source: kratos-sqlite
        target: /var/lib/sqlite
        read_only: false
      - type: bind
        source: ./contrib/quickstart/kratos/email-password
        target: /etc/config/kratos
    command: -c /etc/config/kratos/kratos.yml migrate sql -e --yes
    restart: on-failure
    networks:
      - intranet
  kratos-selfservice-ui-node:
    image: oryd/kratos-selfservice-ui-node:v1.2.0
    environment:
      - KRATOS_PUBLIC_URL=<http://kratos:4433/>
      - KRATOS_BROWSER_URL=<http://127.0.0.1:4433/>
      - COOKIE_SECRET=changeme
      - CSRF_COOKIE_NAME=ory_csrf_ui
      - CSRF_COOKIE_SECRET=changeme
    networks:
      - intranet
    restart: on-failure
  kratos:
    depends_on:
      - kratos-migrate
    image: oryd/kratos:v1.2.0
    ports:
      - '4433:4433' # public
      - '4434:4434' # admin
    restart: unless-stopped
    environment:
      - DSN=sqlite:///var/lib/sqlite/db.sqlite?_fk=true
      - LOG_LEVEL=trace
    command: serve -c /etc/config/kratos/kratos.yml --dev --watch-courier
    volumes:
      - type: volume
        source: kratos-sqlite
        target: /var/lib/sqlite
        read_only: false
      - type: bind
        source: ./contrib/quickstart/kratos/email-password
        target: /etc/config/kratos
    networks:
      - intranet
  mailslurper:
    image: oryd/mailslurper:latest-smtps
    ports:
      - '4436:4436'
      - '4437:4437'
    networks:
      - intranet
networks:
  intranet:
volumes:
  kratos-sqlite: