[Bug] Special symbols are being passed through incorrectly to macOS VM

[Kev4kk]

Host: Macstadium bare metal Macos. Sequoia 15.5

tart --version
2.28.2

tart-guest-agent --version
tart-guest-agent version 0.5.1-43606ef

VM: MacOS Sonoma (14.7) XCode image.

Both the host and the VM have US keyboard layouts. When I'm VNC-ed into the bare metal macos, and try to type in the @ symbol (option + 2), it works correctly. If I then make a text editor active in the VM and try to press the same key combination, I get the trademark symbol. Other option + <number> combination keyboard combinations are also incorrectly parsed. Both the host and the VM have the same (U.S. standard) keyboard layout.

The tart-guest-agent is also installed on the VM, but not allowing pasting text from the host to the VM. Running the tart-guest-agent with --run-vdagent doesn't fix it.

Are there any ways to modify the virtualization framework to work around this issue? Or could this be a Tart configuration issue?

[edigaryev]

I cannot seem to reproduce the trademark symbol issue on the following setup:

• local machine: macOS 26.1 (Tahoe)
• remote machine: macOS 26.1 (Tahoe)
• VM on a remote machine
  • cloned from ghcr.io/cirruslabs/macos-sonoma-xcode:latest
  • started with tart run <VM name> and no extra arguments
  • interacting with a VM through a Tart GUI window, not via a VNC connection

The clipboard sharing does not work, however, it's unlikely an agent issue because ghcr.io/cirruslabs/macos-sequoia-xcode:latest works and has the same agent version.

I'd suggest trying newer macOS versions to see if that does the trick.