gitpod-minecraft-server
How to start
First, use the ./ngrok authtoken <your authtoken> command to log-in to ngrok. You'll get your authtoken here, after this step, type ./ngrok tcp 25565 and the tunneling is ready-to-use.
Now, you need to start the server jar, it's named paper.jar, to start it, just use the JVM command, java -jar (jarName).jar.
The server IP will starts with tcp://<ip here>, remove the tcp:// and share it to your friends.
If you use Minecraft non-official from Mojang, set online-mode to false in server.properties file.