@refastdev/create-refast-app/template/diff-merge/preact-typescript/tsconfig.web.json

create-refast-app

{
  "compilerOptions": {
    "useDefineForClassFields": true,
    "jsxImportSource": "preact",
    "paths": {
      "react": ["./node_modules/preact/compat/"],
      "react-dom": ["./node_modules/preact/compat/"]
    }
  }
}