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You mean like https://wiki.nixos.org/wiki/NixOS_Containers https://wiki.nixos.org/wiki/NixOS_Containers ?

• whazor 7mo ago
  There is also https://microvm-nix.github.io/microvm.nix/ https://microvm-nix.github.io/microvm.nix/ if you want increased isolation.
  • sshine 7mo ago
    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 https://github.com/mic92/nixos-shell
• rendaw 7mo ago
  Can you do those ad-hoc though? I was looking into this too. I feel like it requires a system config change, apply, and then you need to do container start + machinectl login to actually get a shell. That's definitely what I want... most of the time.
  • furryrain 7mo ago
    Yes, NixOS containers can be run in: * declarative mode, where your guest config is defined within your host config, or * imperative mode, where your guest NixOS config is defined in a separate file. You can choose to reuse config between host and guest config files, of course. It sounds like you want imperative containers. Here's the docs: https://nixos.org/manual/nixos/stable/#sec-imperative-containers https://nixos.org/manual/nixos/stable/#sec-imperative-contai...
    • rendaw 7mo ago
      Oh I totally missed that!