[{"name":"Server Jar File","description":"The name of the server jarfile to run the server with.","default_value":"server.jar","env_variable":"SERVER_JARFILE","user_viewable":true,"user_editable":true,"rules":"required|regex:\/^([\\w\\d._-]+)(\\.jar)$\/"},{"name":"Server Version","description":"The version of Minecraft Vanilla to install. Use \"latest\" to install the latest version, or use \"snapshot\" to install the latest snapshot. Go to Settings > Reinstall Server to apply.","default_value":"latest","env_variable":"VANILLA_VERSION","user_viewable":true,"user_editable":true,"rules":"required|string|between:3,15"}]