Sorry anons, but the fact that you so severily underestimate what it takes to write an OS pretty much guarantees that you'll never make one. But I mean, go ahead, have fun
>>156
>emacs but modern
The fuck is that supposed to mean?
What does "modern" mean to you, and what are the charactertics of emacs you want to have? An editor that looks "modern" is achievable through emacs configuration (see the NANO project on r/emacs), an editor that is recent, trendy and extensible in a programming language that is "modern" is vs code (it's based on packages like emacs), an editor that is keyboard controlled and "modern" in a way could be neovim.
>fundamentally integrated into the OS
This is a completely unrelated request to the previous one, but just as vague. EXWM allows you to use Emacs as a window manager, so instead of your TWM you run emacs directly and it manages all your windows.
The Acme text editor is very well integrated with the underlying plan 9 operating system; for example, iirc you can type the name of a system command directly in the toolbar, the press it with the middle mouse button and it gets executed on the currently selected text.