Publish js project to Google Appengine, using yarn workspaces, without publishing packages to npm registry - google-app-engine

Question

I have one repository on GitHub. It includes common packages, an API and a web app.
In the API and in the web app I use the common packages. For that I use yarn workspaces. So I can give the common packages a name in their package.json files and then use them by "common-package-name": "*". This works locally.
I have app.yaml files in the API and in the web app directory. I use GitHub actions to deploy the two apps. But I get the following error:
npm ERR! 404 Not Found - GET https://registry.npmjs.org/#bujus%!f(MISSING)common - Not found
npm ERR! 404
npm ERR! 404 '#bujus/common#*' is not in this registry.
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.
#bujus/common is the first common package.
I do not have pushed the common packages to npm registry and do not want to do so. Is there a solution to this?
In addition, I build the app in the GitHub action and thought that Appengine would just execute the start command which would execute the build files in the dist folder, but apparently it wants to install or just check the dependencies.
The root package.json:
{
"name": "#bujus/root",
"version": "1.0.0",
"private": true,
"license": "UNLICENSED",
"workspaces": [
"tool-presets",
"common",
"common-frontend",
"api",
"school-app"
],
"scripts": {
"build-development": "turbo run build-development",
"build-production": "turbo run build-production",
"lint": "turbo run lint --continue",
"prettify": "turbo run prettify --continue",
"start-development": "turbo run start-development",
"test": "turbo run test"
},
"devDependencies": {
"#bujus/tool-presets": "*",
...
},
"packageManager": "yarn#1.22.17"
}
The common package.json
{
"name": "#bujus/common",
"version": "1.0.0",
"license": "UNLICENSED",
"main": "./dist/common.es.js",
"scripts": {
"build-development": "vite build --mode development",
"build-production": "vite build",
"lint": "eslint --fix --ext .html,.js .",
"prettify": "prettier --write \"./**/*.{html,js}\""
},
"dependencies": {
...
}
}
The webapp package.json
{
"name": "#bujus/school-app",
"version": "1.0.0",
"license": "UNLICENSED",
"scripts": {
"build-production": "vite build",
"lint": "eslint --fix --ext .html,.js,.jsx .",
"prettify": "prettier --write \"./**/*.{html,js,jsx}\"",
"start-development": "vite"
},
"dependencies": {
"#bujus/common": "*",
"#bujus/common-frontend": "*",
...
}
}