@finos/perspective-viewer/src/config/umd.config.js

const path = require("path");
const common = require("@finos/perspective/src/config/common.config.js");

module.exports = common({}, config => {
    return Object.assign(config, {
        entry: {
            "perspective-viewer": "./dist/esm/viewer.js"
        },
        output: {
            filename: "[name].js",
            chunkFilename: "perspective-viewer.[name].js",
            libraryTarget: "umd",
            path: path.resolve(__dirname, "../../dist/umd")
        },
        experiments: {
            syncWebAssembly: true
        }
    });
});