This is fair! Not sure if you're a VS Code user, but our goal is to maintain a parity between the keyboard experience in VS Code and the keyboard experience in Haystack. All the keyboard shortcuts in VS Code still live in Haystack.
If you're a Vim user then this is an entirely different story haha.
To give you (Haystack authors) another datapoint, I'm a +1 to this comment. I can't think of a time when a canvas UI solved a problem I had. Usually it made navigation more difficult.
But also agree that it's great that you're innovating in this space! Good luck!
I actually like keyboard-driven interface + spatial layout, I just don't have a large enough monitor (I've been hoping for 40"+ 8k monitors for years). But having multiple files open that smartly refocus and rearrange as you ESC-. (Emacs shortcut to jump to implementation of a thing under cursor) would be wonderful: if smart "arrows" are drawn between file boxes, that'd be sweet as well.
The hard bit is making that to be "smart" and not annoying with things moving that you still need.
LSP + keyboard-driven interface is miles ahead in terms of efficiency and speed.
I respect the effort of breaking into less researched lands though. Congrats on the launch, I'm sure some will find this tool useful.