{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";

    flake-utils.url = "github:numtide/flake-utils";

    sops-nix = {
      url = "github:Mic92/sops-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    microvm = {
      url = "github:astro/microvm.nix/v0.4.0";
      inputs = {
        nixpkgs.follows = "nixpkgs";
        flake-utils.follows = "flake-utils";
      };
    };

    tmux-yank = {
      url = "github:tmux-plugins/tmux-yank";
      flake = false;
    };
  };

  outputs =
    inputs@{ self
    , flake-utils
    , microvm
    , nixpkgs
    , sops-nix
    , ...
    }:

    {
      nixosConfigurations = {
        cirrus = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";
          specialArgs = { inherit inputs; };
          modules = [
            sops-nix.nixosModules.sops
            ./hosts/cirrus
            ./modules/basic-tools
            ./modules/server
          ];
        };

        dishwasher = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";
          specialArgs = { inherit inputs; };
          modules = [
            sops-nix.nixosModules.sops
            microvm.nixosModules.host
            ./hosts/dishwasher
            ./modules/basic-tools
            ./modules/binary-caches.nix
            ./modules/virtualization.nix
            ./modules/server
          ];
        };

        nextcloud = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";
          specialArgs = { inherit inputs; };
          modules = [
            sops-nix.nixosModules.sops
            microvm.nixosModules.microvm
            ./microvms/nextcloud
            ./modules/server
          ];
        };

        music = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";
          specialArgs = { inherit inputs; };
          modules = [
            sops-nix.nixosModules.sops
            microvm.nixosModules.microvm
            ./microvms/music
            ./modules/server
          ];
        };

        news = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";
          specialArgs = { inherit inputs; };
          modules = [
            sops-nix.nixosModules.sops
            microvm.nixosModules.microvm
            ./microvms/news
            ./modules/server
          ];
        };

        noctilucent = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";
          specialArgs = { inherit inputs; };
          modules = [
            sops-nix.nixosModules.sops

            ./hosts/noctilucent
            ./modules/server

            ./modules/basic-tools
            ./modules/binary-caches.nix
          ];
        };
      };

      hydraJobs =
        let
          get-toplevel = (host: nixSystem: nixSystem.config.microvm.declaredRunner or nixSystem.config.system.build.toplevel);
        in
        nixpkgs.lib.mapAttrs get-toplevel self.nixosConfigurations;
    };
}