Yes, my priority was making the UI done as fast as possible, as I wanted to focus on making the debugger and didn't want to think too much about UI. I looked at some examples of both of them and decided that tui-rs looks easier to use, it takes care of everything for me. Note that I might be wrong, I didn't spend even half an hour looking at the frameworks.

Another reason, albeit really small, was that tui-rs was written specifically for rust, and curses framework I looked into were essentially just C bindings, making it a bit weird to use. To be fair, this disadvantage is by far outweighed by the fact that curses is far more popular than tui-rs, and there is so much more tutorials and documentation to be found about it.

But I wanted to focus on writing the debugger, so I went with what seemed to be more convenient option and paid the price of lower control and performance - for example I have troubles implementing syntax highlighting because tui-rs tries to be clever with mine ansi escape codes.

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Thanks for the links, especially the ble.sh looks amazing.