You can play YEAHWH.AT by adding the server in the Minecraft launcher.
On Minecraft Bedrock Edition, open the Minecraft launcher or Minecraft app. Go to the “Servers” tab and press “Add Server.” Enter the YEAHWH.AT IP Address yeahwh.atin the “Server Address” and the YEAHWH.AT port 19132 in the “Port.” Then press “Save” and start playing.