What worries me is that TUI used to mean light on your hardware unless it's doing actual work that you demanded.
What's the reality with these new frameworks? Whenever I see one i worry that it renders at 144 Hz in a loop instead of redrawing only when something changes, for one. And let's not mention redrawing only the areas that have changed [1].
Should I ask about ram consumption too?
[1] ... which is why vi is the best editor to use over slow, unreliable links.
I don't really see how these terminal borders would make any of these issues worse? You can build a wasteful 144Hz TUI using only dots and spaces. There's a tiny bit of overhead for the extra commands, but everything else seems to be an implementation detail, no?