flake.nix

{
  description = "NixOS on a mirrored ZFS pool using disko.";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
    disko.url = "github:nix-community/disko";
    disko.inputs.nixpkgs.follows = "nixpkgs";
    impermanence.url = "github:nix-community/impermanence";
  };

  outputs = { self, nixpkgs, ... } @ inputs:
    let
      supportedSystems = [ "x86_64-linux" ];
      forEachSystem = nixpkgs.lib.genAttrs supportedSystems;
      forEachPkgs = f: forEachSystem (sys: (f nixpkgs.legacyPackages.${sys}));
    in
    {
      lib = import ./lib inputs;

      devShells = self.lib.mkInstallerShells self.nixosConfigurations;

      formatter = forEachPkgs (pkgs: pkgs.nixpkgs-fmt);

      nixosConfigurations.testhost = nixpkgs.lib.nixosSystem {
        specialArgs = { inherit inputs; };
        modules = [ ./hosts/testhost.nix ];
      };
    };
}