There is also https://microvm-nix.github.io/microvm.nix/ if you want increased isolation.
I can recommend MicroVM.nix, since it allows for multiple VM runtimes like QEMU, Firecracker, etc.
There's also nixos-shell for ad-hoc virtual machines: https://github.com/mic92/nixos-shell
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I can recommend MicroVM.nix, since it allows for multiple VM runtimes like QEMU, Firecracker, etc.
There's also nixos-shell for ad-hoc virtual machines: https://github.com/mic92/nixos-shell