react-native-media-query VS rendertron

Forking RNW is an option. But if you are worried about maintaining a fork of RNW with potential style inconsistencies, then react-native-media-query is already that fork. It attempts to do media queries inside RNW's StyleSheet.

Not yet responsive, but planned responsive under SSR with react-native-media-queries, which makes pure CSS media queries run on native (with device orientation), since Magnus UI generates pure CSS media queries when run on web. They consider it more performant than using Fresnel. But the jury is out..

Of course it’s not all butterflies and rainbows, you’ve already touched on the css limitations such as the positioning fixed & the likely difficulties you’ll face if implementing a drag to upload feature, but if you can live without these features, and for some such a the lack of media queries, you can easily work around by calculating width with Dimensions or this library https://github.com/kasinskas/react-native-media-query#readme (not used this myself so not sure how well it works)

Rendertron is deprecated

Please note that this project is deprecated. Dynamic rendering is not a recommended approach and there are better approaches to rendering on the web.

Rendertron will not be actively maintained at this point.

https://github.com/GoogleChrome/rendertron

GoogleChrome/Rendertron proxy https://github.com/GoogleChrome/rendertron.

Are you worried that rendertron isn't being maintained? (https://github.com/GoogleChrome/rendertron/issues/865 and https://github.com/GoogleChrome/rendertron/issues/801) Have you thought about using anything else or doing it yourself with Puppeteer or Playwright?

Rendertron, quite old now.

Googlebot: SSR a non-responsive mobile version only for the Googlebot User Agent, to get SEO. But do Client-Side Rendering (CSR) for users, to get full responsivity. Could be done with manual user-agent sniffing, or with a GoogleChrome/Rendertron proxy. Though Google may not like being fed something different than users (different initial markup, even though resulting markup after React’s first CSR should be the same). But it might be problematic long-term to SSR only for the Googlebot, since it’s effectively serving the Googlebot something else than what the users get.. Google might crack down on it, since it could be abused.

This might be another one: https://github.com/GoogleChrome/rendertron (not sure if it does everything that prerender does or not).

Still prefer CRA with Dynamic Rendering with rendertron over Next.js and Gatsby...

A demo Rendertron service is available at https://render-tron.appspot.com/. It is not designed to be used as a production endpoint. You can use it, but there are no uptime guarantees.