const Jiacheng = {
  pronouns: "he" | "his",
  code: [
    "Java", "Go", "Python", "TypeScript", "C++", "JavaScript", "Kotlin"
  ],
  middlewares: [
    "Git", "Linux", "SQL", "NoSQL", "Redis", "ClickHouse", 
  "MongoDB", "Kafka", "MessageQ", "Spark", "Hive", "Flink", "Kubernetes", "Docker", "AWS", "GCP", "Alibaba Cloud"
  ],
  architecture: [
    "microservices",
    "design patterns",
    "system design"
  ]
};