Build ohif index.umd.js - reactjs

Question

I have started with OHIF dicom viewer(https://github.com/OHIF/Viewers).
I forked it and I am running in dev mode.
But, I´d like to create a umd as said in src code: 'index-umd.js'.
I read several docs from ohif code but I ddn´t find what scripts from package.json I have to run to generate a 'index-umd.js'
The viewer package.json is something as:
{
"name": "root",
"private": true,
"workspaces": [
"platform/*",
"extensions/*"
],
"engines": {
"node": ">=10",
"npm": ">=6",
"yarn": ">=1.16.0"
},
"scripts": {
"cm": "npx git-cz",
"build": "lerna run build:viewer --stream",
"build:lt": "lerna run build:viewer:lesion-tracker --stream",
"build:ci": "lerna run build:viewer:ci --stream",
"build:demo": "lerna run build:viewer:demo --stream",
"build:package": "lerna run build:viewer:package --stream",
"build:package-all": "lerna run build:package --parallel --stream",
"dev": "lerna run dev:viewer --stream",
"dev:lt": "lerna run dev:viewer:lesion-tracker --stream",
"dev:project": ".scripts/dev.sh",
"dev:orthanc": "lerna run dev:orthanc --stream",
"orthanc:up": "docker-compose -f .docker/Nginx-Orthanc/docker-compose.yml up",
"start": "yarn run dev",
"test": "yarn run test:unit",
"test:unit": "jest --collectCoverage",
"test:unit:ci": "lerna run test:unit:ci --parallel --stream",
"test:e2e": "lerna run test:e2e --stream",
"test:e2e:script-tag": "lerna run test:e2e:script-tag --stream",
"test:e2e:ci": "lerna run test:e2e:ci --stream",
"test:e2e:dist": "lerna run test:e2e:dist --stream",
"test:e2e:serve": "lerna run test:e2e:serve --stream",
"see-changed": "lerna changed",
"docs:publish": "chmod +x ./build-and-publish-docs.sh && ./build-and-publish-docs.sh",
"release": "yarn run lerna:version && yarn run lerna:publish",
"lerna:cache": "./netlify-lerna-cache.sh",
"lerna:restore": "./netlify-lerna-restore.sh",
"lerna:version": "npx lerna version prerelease --force-publish",
"lerna:publish": "lerna publish from-package --canary --dist-tag canary",
"link-list": "npm ls --depth=0 --link=true"
},
"dependencies": {
"#babel/runtime": "^7.5.5",
"core-js": "^3.2.1"
},
"devDependencies": {
"#babel/core": "^7.5.0",
"#babel/plugin-proposal-class-properties": "^7.5.0",
"#babel/plugin-proposal-object-rest-spread": "^7.5.5",
"#babel/plugin-syntax-dynamic-import": "^7.2.0",
"#babel/plugin-transform-arrow-functions": "^7.2.0",
"#babel/plugin-transform-regenerator": "^7.4.5",
"#babel/plugin-transform-runtime": "^7.5.0",
"#babel/preset-env": "^7.5.0",
"#babel/preset-react": "^7.0.0",
"#percy/cypress": "^2.2.0",
"#webpack-cli/serve": "^1.6.1",
"babel-eslint": "9.x",
"babel-loader": "^8.0.6",
"babel-plugin-inline-react-svg": "1.1.0",
"babel-plugin-module-resolver": "^3.2.0",
"clean-webpack-plugin": "^3.0.0",
"copy-webpack-plugin": "^5.0.3",
"cross-env": "^5.2.0",
"css-loader": "^3.2.0",
"cypress-file-upload": "^3.5.3",
"dotenv": "^8.1.0",
"eslint": "5.16.0",
"eslint-config-prettier": "^6.4.0",
"eslint-config-react-app": "^4.0.1",
"eslint-plugin-flowtype": "2.x",
"eslint-plugin-import": "2.x",
"eslint-plugin-jsx-a11y": "6.x",
"eslint-plugin-node": "^9.1.0",
"eslint-plugin-prettier": "^3.1.1",
"eslint-plugin-promise": "^4.2.1",
"eslint-plugin-react": "7.x",
"eslint-plugin-react-hooks": "1.5.0",
"extract-css-chunks-webpack-plugin": "^4.5.4",
"html-webpack-plugin": "^3.2.0",
"husky": "^3.0.0",
"jest": "^24.8.0",
"jest-canvas-mock": "^2.1.0",
"jest-junit": "^6.4.0",
"lerna": "^3.15.0",
"lint-staged": "^9.0.2",
"optimize-css-assets-webpack-plugin": "^5.0.3",
"postcss-import": "^12.0.1",
"postcss-loader": "^3.0.0",
"postcss-preset-env": "^6.6.0",
"prettier": "^1.18.2",
"react": "^16.8.6",
"react-dom": "^16.8.6",
"react-hot-loader": "^4.12.11",
"redux-testkit": "^1.0.6",
"serve": "^11.1.0",
"shader-loader": "^1.3.1",
"start-server-and-test": "^1.10.0",
"style-loader": "^1.0.0",
"styled-components": "^5.3.5",
"stylelint": "^10.1.0",
"stylelint-config-recommended": "^2.2.0",
"stylus": "^0.54.5",
"stylus-loader": "^3.0.2",
"terser-webpack-plugin": "^2.1.0",
"webpack": "^4.35.2",
"webpack-cli": "^4.9.2",
"webpack-dev-server": "^4.7.3",
"webpack-hot-middleware": "^2.25.0",
"webpack-merge": "^4.2.1",
"workbox-webpack-plugin": "^5.0.0-beta.1",
"worker-loader": "^2.0.0"
},
"husky": {
"hooks": {
"pre-commit": "lint-staged"
}
},
"lint-staged": {
"src/**/*.{js,json,css}": [
"prettier --write",
"git add"
]
},
"resolutions": {
"**/node-gyp": "8.4.1",
"**/#babel/runtime": "7.5.5"
}
}