Summary

Change devEngines to indicate the required node version to perform every development workflow.

With node@12.16.0 yarn build react-server-dom-webpack/node-loader throws with

$ node ./scripts/rollup/build.js react-server-dom-webpack/node-loader
/home/eps1lon/Development/forks/react/scripts/rollup/build.js:44
  throw err;
  ^

Error: Cannot find module 'react-server-dom-webpack/node-loader'
Require stack:
- /home/eps1lon/Development/forks/react/scripts/rollup/build.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:980:15)
    at Function.resolve (internal/modules/cjs/helpers.js:83:19)
    at createBundle (/home/eps1lon/Development/forks/react/scripts/rollup/build.js:556:13)
    at buildEverything (/home/eps1lon/Development/forks/react/scripts/rollup/build.js:776:11) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/home/eps1lon/Development/forks/react/scripts/rollup/build.js' ]
}
error Command failed with exit code 1.

Probably because of the way exports field in packages/react-server-dom-webpack/package.json is constructed.

"exports": {
    ".": "./index.js",
    "./plugin": "./plugin.js",
    "./writer": {
      "react-server": {
        "node": "./writer.node.server.js",
        "browser": "./writer.browser.server.js"
      },
      "default": "./writer.js"
    },
    "./writer.node.server": "./writer.node.server.js",
    "./writer.browser.server": "./writer.browser.server.js",
    "./node-loader": "./esm/react-server-dom-webpack-node-loader.js",
    "./node-register": "./node-register.js",
    "./package.json": "./package.json"
  },

With node@12.17.0 the command passes.

Test Plan

• CI green
• yarn build react-server-dom-webpack/node-loader passes in node@12.17.0 and node@16.0.0