Nestjs does not use webpack config file when run a build command

I have a Node js code which I try to build together with nestjs and webpack. I try to inject global variables using webpack.DefinePlugin, but in the build result I can see the variables not being replaces.

nest-cli.json file:

{
    "$schema": "https://json.schemastore.org/nest-cli",
    "collection": "@nestjs/schematics",
    "sourceRoot": "src",
    "compilerOptions": {
        "webpack": true,
        "webpackConfigPath": "./webpack.config.ts"
    }
}

webpack.config.ts file:

import webpack from 'webpack';
import WebpackShellPluginNext from 'webpack-shell-plugin-next';
import isCI from 'is-ci';

const isDev = process.env.NODE_ENV === 'development' && !isCI;
const cliApiDomain = isDev ? 'localhost' : 'xxx.xxx';
const cliApiUrl = isDev ? 'http://localhost:5000' : 'https://www.xxx.xxx';
const dashboardUrl = isDev ? 'http://localhost:8080' : 'https://xxx.xxxx';

const configuration = (options: webpack.Configuration): webpack.Configuration => ({
    ...options,
    plugins: [
        ...options.plugins!,
        new WebpackShellPluginNext({
            onBuildStart: {
                scripts: ['rimraf dist'],
                blocking: true,
            },
            safe: true,
        }),
        new webpack.DefinePlugin({
            __CLI_API_DOMAIN__: `'${cliApiDomain}'`,
            __CLI_API_URL__: `'${cliApiUrl}'`,
            __DASHBOARD_URL__: `'${dashboardUrl}'`,
        }),
    ],
});

export default configuration;

I have package.json scripts for running in dev mode and production mode:

.
.
.
        "build": "nest build",
        "build:dev": "cross-env NODE_ENV=development nest build",
.
.
.

I use the configured variables in my source code:

    private config: IConfig = {
        API_URL: __CLI_API_URL__,
        DASHBOARD_URL: __DASHBOARD_URL__,
    };

However, these variables are not replaced with webpack. When I inspect my build code, I can see those variables are still in my code.

I expect to see them replaced. It seems like Nestjs does not even use my file

After switching file of webpack.config.ts to use same logic but with js: webpack.config.js it worked. Nestjs won't support TS config file?