I am wondering about giving Remix a whirl for an upcoming forum/CMS rewrite with custom auth. Anybody else have experiences with Remix?
Stick with a single version and you'd probably be happy though.
FWIW, I've been doing webdev-related work for a living since 1998, and React since 2016.
Having to know node (or other supported server) and needing to implement your server business logic from scratch (models, db access, caching layer with redis or something, etc. etc.) is not a weakness, it's a strength.
The thing that .net tried to do for like a decade and failed to (one stack for both the server and the client), see Blazor bullshit etc. is handled here. Imagine you need a modern web app or a shop or whatever and that means React. It just does. Your backend stack is PHP or Rails or Go or whatever. Now you have to somehow square the hydration circle which you can't do without it being a massive pita (as PHP renders a page on the backend in.. well.. PHP) so you end up passing the data manually in some blobs of jsons or whatever with each request (or even worse, side to it in some fetches) that then React initializes from on the client and it's a total mess. Not to mention that unless you render the page in both php and react (try to keep both outputs the same lmao), you'll only see the full app "on the client" meaning crawlers/bots/google have to run JS on all your pages or see nonsense ... yikes.
SSR with hydration is there for this reason. You render the same React tree both on the server and on the client. The hydration process itself is made much easier by RR and its infrastructure (automatic passing of data to the client). Hell, thanks to SSR you don't even have to have JS enabled on the client if you're using just basic web standarts (see RRv7 docs on progressive enhancement and state management) and the site will work. This means even crawlers without JS runtimes will be able to index your site.
New devs coming in and expecting the framework to be with "batteries included", which it absolutely is not, will also have a bad time. Node apis, ALS/context, handling app version changes on deploys, running the server app itself (if in cluster mode, e.g. with pm2, what that means in terms of a "stateless" app, wiring up all the connnections and pool and events and graceful reloads and whatnot...), hell even basic logging (instead of console.xxx) ... all of that is up to you to handle. But the framework gives you space.
People new to React and/or Node will be confused as hell for quite a bit... in such a cases I would add like 3 months of personal dev time and learning to just wrapping your head around everything... React docs themselves say that you should use a framework if you're using React in 2025 - but it's not that easy. There is a cost, especially if you go the full stack route (client + server + hydration) of having everything under one "typescript roof". The payoff is big, but definitely not immediate.