It is a simple software that returns IP address after entering a Host-Name.It works only under the WiFi.This app is developed as an open source.https://github.com/Network-Revolution/DotLocalFinderIf you find the debian or ubuntu or centos or Red-Hat PC,These PC need to have mDNS installed.Please input the following command.apt install avahi-daemon libnss-mdnsdnf install avahi avahi-tools nss-mdnsyum install avahi avahi-tools nss-mdns Windows10 and macOS have mDNS installed from the beginning, so you can find it without any action.If you have even mDNS installed, you can also find SBCs such as ESP32 or micro:bit.The following example shows how to build a host with Arduino.https://github.com/Vasil-Pahomov/Lianahttps://tttapa.github.io/ESP8266/Chap08%20-%20mDNS.htmlYou can do not only Arduino but also Golang https://github.com/hashicorp/mdnsbut also Pythonhttps://pypi.org/project/mdns-publisher/Of course,Both Golang and Python run on ESP32.https://tinygo.org/faq/what-about-esp8266-esp32/https://docs.micropython.org/en/latest/esp32/tutorial/intro.htmlPython run on micro:bit.https://microbit-micropython.readthedocs.io/en/latest/Of course, you can also find RaspberryPi with Raspbian installed.You should search for "raspberrypi" in this app!