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If your issue with Curses is its ancient and outdated API then you could look at NotCurses.
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CodeRabbit
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PixiJS
The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.
Something like PixiJS can also work for both without having to touch either, and I find it a lot easier to use than the little bit of webgl and canvas that I've had to work with directly.
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Casey Muratori made a renderer/terminal a short while back. Might be a good reference of you intend to go that route. https://github.com/cmuratori/refterm
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I'm participating in the "roguelikedev does the roguelike tutorial" this year, take a look at the project repo on github. Mi goal is to have something simple, very very simple, that anyone can follow along. It's written in c without any external library!