Gns3-gui/gns3-server - Can't set QEMU binary

I am trying to get gns3 up and running so that I can work on some ideas I’ve been having, and while I’ve been able to get the basics done, one thing I can’t seem to get is qemu VMs at all.

When I go into the settings to create a qemu VM, the field for selecting/adding a QEMU binary is disabled and I can’t specify any qemu binaries whatsoever. It doesn’t matter if this is in the GNS3 GUI or in the server’s web interface, the result is the same.

There doesn’t seem to be any NixOS-relevant documentation on getting qemu working with gns3… and the module provides no configuration options for specifying any qemu binaries whatsoever, so I’m kind of stuck with a fairly useless install of gns3 since I can’t test anything I’m hoping to tinker with.


I’m using NixOS unstable. Has anyone actually gotten GNS3 to work with qemu on NixOS? If so, how?