[nine_k]

An X server also normally renders things locally, as does a VT-compatible terminal. If you want no local rendering at all, there's VNC.

With a web app, you can slice and dice processing between local and remote by running JS locally. Most processing usually happens remotely though, and only the display and command logic is run in the browser.

[tracker1]

I've built my career in web based apps... Depending on what you're doing, your exponentially increasing you bug surface in a web based app vs a TUI over a remote shell/ssh.

It's not a matter of if you can do much as if it's practical, reasonable or worth the effort. I say this while writing an application that is effectively a remote web GUI over what can be done in their terminal sessions, because I want a nice UX.

I'm hoping to sell it commercially even. That doesn't mean TUI can't be a better option.