jsc: {
    experimental: {
        plugins: [
            ['swc-plugin-jsx-control-statements', {}],
        ],
    },
},

import React from 'react';

const Greeting = () => {
  const [closed, setClosed] = useState(false);
  
  return (
      <>
          <If condition={!closed}>
              Hello,
          </If>
          World
          <If condition={!closed}>
            <button onClick={() => setClosed(true)}>Close</button>
          </If>
      </>
  )
};

import React from 'react';

const Greeting = () => {
  const [closed, setClosed] = useState(false);
  
  return (
      <>
          <Choose>
              <When condition={!closed}>
                  Hello,
              </When>
              <Otherwise>
                  Bye,
              </Otherwise>
          </Choose>
          World
          <If condition={!closed}>
            <button onClick={() => setClosed(true)}>Close</button>
          </If>
      </>
  )
};