npub1th…lw4nm on Nostr: I don't have a terminal that could do this. If I implemented that in the kernel, I'd ...

I don't have a terminal that could do this. If I implemented that in the kernel, I'd need to grow the buffer from storing a single line to a page (though the kernel currently has no concept of pages of text). If I implement it in user space, I may as well just implement the more traditional arrow keys cycling through the shell history.