You can play positivemyth 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 positivemyth IP Address positivemyth.comin the “Server Address” and the positivemyth port 19132 in the “Port.” Then press “Save” and start playing.