I think one of the bigger barriers is that terminals don't really have a component reuse boundary.
What I mean by that is: in the browser, you can always put more HTML inside a div tag, and generally speaking, it's gonna stay within the boundaries of that div tag, and things will compose and it won't be a fuss. In the terminal: what's the equivalent of that?
It's possible, and yet not actually remotely pleasant, to make a new PTY/TTY for each component (or each small application that you want to embed within another), and then grab the state of that PTY and replicate it into a rectangular region in another PTY that's bigger. There's so, so, SO much friction in this, though. It also only solves the view bounding: it doesn't solve, for example, the ability to have a copy/paste operation that works on the interior content in a standard way (instead each terminal application solves that itself, usually with some unique bespoke shortcut sequence, because you need _application logic_ to find text ranges since what's rendered to a terminal vs what the logical text state is are usually different).
I think if someone created some very basic component-oriented UI system to solve the composition problem -- then kept most of the components as roughly PTY/TTY and TUI concepts! -- it could lead to interesting places that PTY stuff will have difficulty getting to alone.
I'm actually working on this. Component based over the wire TUI system. It's in a decent alpha state but I want to code and host some more sample sites before I start sharing a ton.
I think one of the bigger barriers is that terminals don't really have a component reuse boundary.
What I mean by that is: in the browser, you can always put more HTML inside a div tag, and generally speaking, it's gonna stay within the boundaries of that div tag, and things will compose and it won't be a fuss. In the terminal: what's the equivalent of that?
It's possible, and yet not actually remotely pleasant, to make a new PTY/TTY for each component (or each small application that you want to embed within another), and then grab the state of that PTY and replicate it into a rectangular region in another PTY that's bigger. There's so, so, SO much friction in this, though. It also only solves the view bounding: it doesn't solve, for example, the ability to have a copy/paste operation that works on the interior content in a standard way (instead each terminal application solves that itself, usually with some unique bespoke shortcut sequence, because you need _application logic_ to find text ranges since what's rendered to a terminal vs what the logical text state is are usually different).
I think if someone created some very basic component-oriented UI system to solve the composition problem -- then kept most of the components as roughly PTY/TTY and TUI concepts! -- it could lead to interesting places that PTY stuff will have difficulty getting to alone.