crisp-react VS compress-create-react-app

If TypeScript doesn't put you off (it's really a good choice for both backend and frontend), have a look at Crisp React.

Ability to handle a monorepo with 2 builds depends on a particular monorepo. For example, Crisp React (https://github.com/winwiz1/crisp-react) has 2 logical projects: server (https://github.com/winwiz1/crisp-react/server) and client (https://github.com/winwiz1/crisp-react/client). Each project can be built separately. And this is the website built (both projects used) and deployed automatically by Cloudflare Pages: https://jamstack.winwiz1.com

You can use Crisp React to split a monolythic React SPA into several SPAs. Each SPA will have its own instance of React Router that is aware of the several pages that belong to that particular SPA.

The VM resorces such as CPU and memory should be used to handle API calls and return data. That's in case some webpages are dynamic and require API data. All static assetts including images are better to be served by a CDN. Which means your VM will serve the static assets to the CDN data centers and not to end users. Example: this website or that.

For deployment you can use Docker multi-staged build to ensure the backend run-time environment doesn't contain the client build-time dependencies e.g. client/node_modules/. It improves security and reduces container's storage footprint. An example for React client and node server is here. Although this has nothing to do with code/types sharing.

https://github.com/winwiz1/crisp-react/blob/master/docs/benc...

Tailwind is powerful, consistent and comprehensive but again the advantages come not without a drawback: In order to use it effectively one needs to learn/memorise yet another CSS. I have better things to do and think it's more efficient to use a set of CSS management approaches:

Crisp React uses the same Express server in production and debugging (for full stack builds only).

The alternative approach is to use not many but several tools in a manner that utilises advantages while minimising drawbacks. You can read about it here, scroll down to the CSS bullet.

You can have Login/authentication SPA, Reporting SPA, etc. Each SPA does its own routing as demonstrated here.

If you haven't already, try to add compression. There are npm modules for it. If you're using create-react-app, it could be as simple as installing a package and adding a simple script to your package.json. I've made a package like this called compress-create-react-app. Usage is very simple but the downside is that you can't configure it in any way even if you want to.