Have you ran into any issues with handling inputs? Like how vim Ctrl+P would maybe be intercepted by the browser Ctrl+P shortcut for print.
And have you run into any other issues, maybe like performance?
I feel like web-ified terminals get nerfed pretty hard and I'm not sure if/how people overcome that.
I like the idea of customizing multiplexed terminals with on-the-fly JavaScript, tho.
I haven't seen any performance issues for Claude Code, even when I'm running like 20 in one browser tab and looking at them all at the same time (rendered with xterm.js), but Gemini and OpenCode flicker a lot even if you have one open.