alqueva/lib/default.nix

{
  inputs,
  self,
  ...
}: {
  flake.lib = let
    inherit (inputs.nixpkgs.lib) nixosSystem;
    inherit (builtins) mapAttrs;
    mkHost = {
      hostname,
      system,
      extraModules ? [],
      extraSpecialArgs ? {},
    }:
      nixosSystem {
        inherit system;
        specialArgs = {inherit inputs self;} // extraSpecialArgs;
        modules =
          [
            ../hosts/${hostname}
            self.nixosModules.default
            {
              _module.args = {
                lib' = self.lib;
                inherit system;
              };

              nixpkgs = {
                inherit system;
                config.allowUnfree = true;
              };
            }
            {
              networking.hostName = hostname;
              nix = {
                settings.extra-experimental-features = [
                  "nix-command"
                  "flakes"
                ];
                gc = {
                  automatic = true;
                  dates = "weekly";
                };
              };
              systemd.oomd = {
                enableRootSlice = true;
                extraConfig = {DefaultMemoryPressureDurationSec = "20s";};
              };
            }
          ]
          ++ extraModules;
      };
    mkHosts = mapAttrs (hostname: args: mkHost (args // {inherit hostname;}));
  in {
    inherit mkHosts;
  };
}