run-qwik-optimizer.tsx

import * as qwikOptimizer from "@builder.io/qwik/optimizer";
const optimizer = await qwikOptimizer.createOptimizer();

const code = `
export default () => {
  return (
    <>
      <h1>Hello</h1>
    </>
  );
};
`;

const transformed = optimizer.transformModulesSync({
  input: [{
    path: "src/main.tsx",
    code: code,  
  }],
  srcDir: "src/",
  isServer: true,
  transpileJsx: true,
  transpileTs: true,
  // rootDir?: string;
  // entryStrategy?: EntryStrategy;
  // minify?: MinifyMode;
  // sourceMaps?: boolean;
  // transpileTs?: boolean;
  // transpileJsx?: boolean;
  // preserveFilenames?: boolean;
  // explicitExtensions?: boolean;
  // mode?: EmitMode;
  // scope?: string;
  // stripExports?: string[];
  // regCtxName?: string[];
  // stripCtxName?: string[];
  // stripEventHandlers?: boolean;
  // isServer?: boolean;
});

console.log(transformed.modules[0].code);