How to override nx webpack config from lib

[ruslan-byondxr]

According to the NX API, there is an option to use a custom webpack config inside an application:

https://nx.dev/latest/react/node/build#webpackconfig

Custom webpack config as mentioned below doesn't work in libs. Works for apps only

short example:
webpackConfig": ["@nrwl/react/plugins/webpack", "apps/react-viewer-playground/webpack.config.js"]

long example:

"targets": {
        "build": {
          "executor": "@nrwl/web:build",
          "outputs": ["{options.outputPath}"],
          "options": {
            "outputPath": "dist/apps/react-viewer-playground",
            "index": "apps/react-viewer-playground/src/index.html",
            "main": "apps/react-viewer-playground/src/main.tsx",
            "polyfills": "apps/react-viewer-playground/src/polyfills.ts",
            "tsConfig": "apps/react-viewer-playground/tsconfig.app.json",
            "assets": [
              "apps/react-viewer-playground/src/favicon.ico",
              "apps/react-viewer-playground/src/assets"
            ],
            "styles": [],
            "scripts": [],
            "webpackConfig": ["@nrwl/react/plugins/webpack", "apps/react-viewer-playground/webpack.config.js"]
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "apps/react-viewer-playground/src/environments/environment.ts",
                  "with": "apps/react-viewer-playground/src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "extractLicenses": true,
              "vendorChunk": false,
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "5mb",
                  "maximumError": "55mb"
                }
              ]
            }
          }
        },

}