{
  description = "tlater.net host configuration";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-20.09";
    nixos-hardware.url = "github:nixos/nixos-hardware/master";
    flake-utils.url = "github:numtide/flake-utils";
    tlaternet-webserver = {
      url = "git+https://gitea.tlater.net/tlaternet/tlaternet.git";
      inputs = {
        flake-utils.follows = "flake-utils";
        nixpkgs.follows = "nixpkgs";
      };
    };
    tlaternet-templates = {
      url = "git+https://gitea.tlater.net/tlaternet/tlaternet-templates.git";
      inputs = {
        flake-utils.follows = "flake-utils";
        nixpkgs.follows = "nixpkgs";
      };
    };
  };

  outputs = { nixpkgs, nixos-hardware, flake-utils, tlaternet-webserver
    , tlaternet-templates, ... }@inputs:
    let
      overlays = [
        (final: prev: {
          tlaternet-webserver =
            tlaternet-webserver.legacyPackages.${prev.system}.packages;
          tlaternet-templates =
            tlaternet-templates.legacyPackages.${prev.system}.packages;
        })
      ];

    in {
      nixosConfigurations = {
        tlaternet = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";

          modules = [
            ({ modulesPath, ... }: {
              imports = [ (modulesPath + "/profiles/headless.nix") ];
              nixpkgs.overlays = overlays;
            })
            (import ./modules)

            (import ./configuration)
            (import ./configuration/linode.nix)
            (import ./configuration/hardware-configuration.nix)
          ];
        };

        vm = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";

          modules = [
            ({ modulesPath, ... }: {
              imports = [ (modulesPath + "/profiles/headless.nix") ];
              nixpkgs.overlays = overlays;
            })
            (import ./modules)

            (import ./configuration)
            ({ ... }: {
              users.users.tlater.password = "insecure";
              # virtualisation.memorySize = 3941;
              # virtualisation.cores = 2;
            })
          ];
        };
      };
    } // flake-utils.lib.eachDefaultSystem (system: {
      devShell = with nixpkgs.legacyPackages.${system};
        mkShell {
          buildInputs = [ nixfmt git-lfs ];
          shellHook = ''
            export QEMU_OPTS="-m 3941 -smp 2"
            export QEMU_NET_OPTS="hostfwd=::3022-:2222,hostfwd=::3080-:80,hostfwd=::3443-:443,hostfwd=::3021-:2221,hostfwd=::25565-:25565"
          '';
        };
    });
}