traincarts/src/main/resources/traincarts.mixins.json

{
  "required": true,
  "minVersion": "0.8",
  "package": "net.hazelra.traincarts.mixin",
  "compatibilityLevel": "JAVA_8",
  "mixins": [],
  "client": ["ExampleMixin"],
  "injectors": {
    "defaultRequire": 1
  }
}