ESP32 network name with added mac suffix

ESPHome
1

If you plan same code with many ESP32’s to work same house you can use ths code, it displays real network name, with same as captive portal name

substitutions:
  name: "smart-display" # MODIFY THIS VALUE
  friendly_name: Smart Display
  comment: "${friendly_name} Devleoping Version"  # MODIFY THIS VALUE

esphome:
  name: "${name}"
  name_add_mac_suffix: true # this makes esp32's name to like 'smart-display-e8d3b6.local'
  friendly_name: "${friendly_name}"
  comment: "${comment}"  

globals:
  - id: mdns_name
    type: std::string
    restore_value: yes
    max_restore_data_length: 31
    initial_value: '"${name}"'

esp32:
  board: esp32-c6-devkitc-1
  framework:
    type: esp-idf

wifi:
  ap:

captive_portal:

text_sensor:

  - platform: wifi_info
    mac_address: # this is esp32's wifi network macID, it's unique
      entity_category: diagnostic
      name: "WiFi MacID"
      icon: mdi:ip-network
      id: wifi_macid
      internal: True # we don't display macID in web page, if you wish turn False

  - platform: template  # this is ESP32's web interface address
    name: "Web Interface address"  
    id: esphome_wifi_url
    icon: mdi:information-variant-circle-outline
    entity_category: diagnostic
    update_interval: 1hours
    lambda: !lambda |-
              std::string strArray[20] = { id( wifi_macid ).state};
              std::string adres="http://" + id(mdns_name) + "-" ;
              std::string kod ="";
              for ( std::string s : strArray ) {
                  kod = kod + s.c_str();
              }
              std::string son3 = kod.substr(9,2);  
              std::string son2 = kod.substr(12, 2);
              std::string son1 = kod.substr(15, 2);
              for (char &c : son1 ) {
                      if (c >= 'A' && c <= 'Z') {
                          c += 32;
                      }
                  }
              for (char &c : son2 ) {
                      if (c >= 'A' && c <= 'Z') {
                          c += 32;
                      }
                  }
              for (char &c : son3 ) {
                      if (c >= 'A' && c <= 'Z') {
                          c += 32;
                      }
                  }                  
              ESP_LOGI("web: ", "You can browse this ESP with  %s address.", (adres +  son3 + son2 + son1 + ".local/").c_str());
              return {adres +  son3 + son2 + son1 + ".local/"};
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