I'm using nixos testing machinery to setup several nixos VMs for ad-hoc testing of a distributed service. I want to persist some state between run (in particular ssh host keys and tailscale configuration). I tried using impermanence, but it looks like it doesn't work, since qemu-vm.nix overrides config.fileSystems set by impermanence.
I'm using nixos testing machinery to setup several nixos VMs for ad-hoc testing of a distributed service. I want to persist some state between run (in particular ssh host keys and tailscale configuration). I tried using impermanence, but it looks like it doesn't work, since
qemu-vm.nix
overridesconfig.fileSystems
set by impermanence.