panel/config/webpack/development.js

process.env.NODE_ENV = process.env.NODE_ENV || 'development'

const ForkTsCheckerWebpackPlugin = require("fork-ts-checker-webpack-plugin");
const path = require("path");

const environment = require('./environment')

environment.plugins.append(
  "ForkTsCheckerWebpackPlugin",
  new ForkTsCheckerWebpackPlugin({
    typescript: {
		configFile: path.resolve(__dirname, "../../tsconfig.json"),
	},
    // non-async so type checking will block compilation
    async: false,
  })
);

module.exports = environment.toWebpackConfig()