Earlier quoted context omitted.
You haven't worked with Vercel. Just connect your git account and you have a fully git-flow based server, with preview urls for every PR. Especially for small projects ideal. Running it on a VPS is a skill on it's own, for both, if users had known to use NVM (which is explained in most top articles in Google) it would have not been a problem and if they don't know they should accept the learning pains of running prod…
You normally want to see things locally as you develop them. Vercel is cool and all, but doing a git push and waiting for the build every time you want a refresh? Nah, that's not viable. And almost everything mentioned above for deployments applies to your own dev machine as well.
It's fairly normal to run some version of `npm run serve` with a filesystem watcher that will hot-reload changes as they occur so that you can see changes every time you hit :w (or CMD+S or whatever saves a file on your filesystem)