The creator of Toad, made a TUI framework in Python (Textual). What is so special about Rust, aside from it being blazingly fast and compiled, that you want from it?
I tried Toad and to me it feels ridiculously slow and laggy. Switching between input and output (ALT+up/down) for example just lags, I can notice the transition. The whole UI lags. It's no wonder, it's python. Simply the wrong language for this, sorry.
