nixos/modules/programs/extra-container.nix


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{ config, pkgs, lib, ... }:

let
  cfg = config.programs.extra-container;
in {
  options = {
    programs.extra-container.enable = lib.mkEnableOption ''
      extra-container, a tool for running declarative NixOS containers
      without host system rebuilds
    '';
  };
  config = lib.mkIf cfg.enable {
    environment.systemPackages = [ pkgs.extra-container ];
    boot.extraSystemdUnitPaths = [ "/etc/systemd-mutable/system" ];
  };
}