{
  description = "motiejus/config";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
    flake-utils.url = "github:numtide/flake-utils";
    flake-compat.url = "github:nix-community/flake-compat";
    nixos-hardware.url = "github:NixOS/nixos-hardware/master";

    home-manager.url = "github:nix-community/home-manager/release-23.05";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";

    agenix.url = "github:ryantm/agenix";
    agenix.inputs.nixpkgs.follows = "nixpkgs";
    agenix.inputs.home-manager.follows = "home-manager";
    agenix.inputs.darwin.follows = "";

    deploy-rs.url = "github:serokell/deploy-rs";
    deploy-rs.inputs.nixpkgs.follows = "nixpkgs";
    deploy-rs.inputs.flake-compat.follows = "flake-compat";
    deploy-rs.inputs.utils.follows = "flake-utils";

    nix-index-database.url = "github:Mic92/nix-index-database";
    nix-index-database.inputs.nixpkgs.follows = "nixpkgs";

    pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
    pre-commit-hooks.inputs.nixpkgs.follows = "nixpkgs";
    pre-commit-hooks.inputs.nixpkgs-stable.follows = "nixpkgs";
    pre-commit-hooks.inputs.flake-utils.follows = "flake-utils";
    pre-commit-hooks.inputs.flake-compat.follows = "flake-compat";

    nur.url = "github:nix-community/NUR";
  };

  nixConfig = {
    trusted-substituters = "https://cache.nixos.org/";
    trusted-public-keys = "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=";
  };

  outputs = {
    self,
    nixpkgs,
    agenix,
    deploy-rs,
    flake-utils,
    home-manager,
    nixos-hardware,
    nix-index-database,
    pre-commit-hooks,
    nur,
    ...
  } @ inputs: let
    myData = import ./data.nix;
    mkDeployPkgs = system:
      import nixpkgs {
        inherit system;

        overlays = [
          deploy-rs.overlay
          (_self: super: {
            deploy-rs = {
              inherit (import nixpkgs {inherit system;}) deploy-rs;
              inherit (super.deploy-rs) lib;
            };
          })
        ];
      };
    deployPkgsIA64 = mkDeployPkgs "x86_64-linux";
    deployPkgsArm64 = mkDeployPkgs "aarch64-linux";
  in
    {
      #nixosConfigurations.vm = nixpkgs.lib.nixosSystem {
      #  system = "x86_64-linux";
      #  modules = [
      #    ./hosts/vm/configuration.nix
      #    ./modules
      #  ];

      #  specialArgs = {inherit myData;} // inputs;
      #};

      nixosConfigurations.vno1-oh2 = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ./hosts/vno1-oh2/configuration.nix

          ./modules

          agenix.nixosModules.default
          home-manager.nixosModules.home-manager

          {
            age.secrets.motiejus-passwd-hash.file = ./secrets/motiejus_passwd_hash.age;
            age.secrets.root-passwd-hash.file = ./secrets/root_passwd_hash.age;
            age.secrets.zfs-passphrase-fra1-a.file = ./secrets/fra1-a/zfs-passphrase.age;

            age.secrets.headscale-client-oidc.file = ./secrets/headscale/oidc_client_secret2.age;
            age.secrets.sasl-passwd.file = ./secrets/postfix_sasl_passwd.age;
            age.secrets.borgbackup-password.file = ./secrets/vno1-oh2/borgbackup/password.age;
            age.secrets.grafana-oidc.file = ./secrets/grafana.jakstys.lt/oidc.age;
            age.secrets.letsencrypt-account-key.file = ./secrets/letsencrypt/account.key.age;
            age.secrets.vaultwarden-secrets-env.file = ./secrets/vaultwarden/secrets.env.age;

            age.secrets.synapse-jakstys-signing-key.file = ./secrets/synapse/jakstys_lt_signing_key.age;
            age.secrets.synapse-registration-shared-secret.file = ./secrets/synapse/registration_shared_secret.age;
            age.secrets.synapse-macaroon-secret-key.file = ./secrets/synapse/macaroon_secret_key.age;
          }
        ];

        specialArgs = {inherit myData;} // inputs;
      };

      nixosConfigurations.fwminex = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          {nixpkgs.overlays = [nur.overlay];}
          ./hosts/fwminex/configuration.nix

          ./modules
          ./modules/profiles/desktop

          nur.nixosModules.nur
          agenix.nixosModules.default
          home-manager.nixosModules.home-manager
          nixos-hardware.nixosModules.framework-12th-gen-intel
          nix-index-database.nixosModules.nix-index

          {
            age.secrets.motiejus-passwd-hash.file = ./secrets/motiejus_passwd_hash.age;
            age.secrets.root-passwd-hash.file = ./secrets/root_passwd_hash.age;
            age.secrets.sasl-passwd.file = ./secrets/postfix_sasl_passwd.age;
          }
        ];

        specialArgs = {inherit myData;} // inputs;
      };

      nixosConfigurations.vno3-rp3b = nixpkgs.lib.nixosSystem {
        modules = [
          ./hosts/vno3-rp3b/configuration.nix

          ./modules

          agenix.nixosModules.default
          home-manager.nixosModules.home-manager

          {
            age.secrets.motiejus-passwd-hash.file = ./secrets/motiejus_passwd_hash.age;
            age.secrets.root-passwd-hash.file = ./secrets/root_passwd_hash.age;
            age.secrets.sasl-passwd.file = ./secrets/postfix_sasl_passwd.age;

            age.secrets.datapool-passphrase.file = ./secrets/vno3-rp3b/datapool-passphrase.age;
          }
        ];

        specialArgs = {inherit myData;} // inputs;
      };

      nixosConfigurations.fra1-a = nixpkgs.lib.nixosSystem {
        modules = [
          ./hosts/fra1-a/configuration.nix

          ./modules

          agenix.nixosModules.default
          home-manager.nixosModules.home-manager

          {
            age.secrets.zfs-passphrase-vno1-oh2.file = ./secrets/vno1-oh2/zfs-passphrase.age;
            age.secrets.motiejus-passwd-hash.file = ./secrets/motiejus_passwd_hash.age;
            age.secrets.root-passwd-hash.file = ./secrets/root_passwd_hash.age;
            age.secrets.sasl-passwd.file = ./secrets/postfix_sasl_passwd.age;
          }
        ];

        specialArgs = {inherit myData;} // inputs;
      };

      deploy.nodes.vno1-oh2 = {
        hostname = myData.hosts."vno1-oh2.servers.jakst".jakstIP;
        profiles = {
          system = {
            sshUser = "motiejus";
            path =
              deployPkgsIA64.deploy-rs.lib.activate.nixos self.nixosConfigurations.vno1-oh2;
            user = "root";
          };
        };
      };

      deploy.nodes.fwminex = {
        hostname = myData.hosts."fwminex.motiejus.jakst".jakstIP;
        profiles = {
          system = {
            sshUser = "motiejus";
            path =
              deployPkgsIA64.deploy-rs.lib.activate.nixos self.nixosConfigurations.fwminex;
            user = "root";
          };
        };
      };

      deploy.nodes.vno3-rp3b = {
        hostname = myData.hosts."vno3-rp3b.servers.jakst".jakstIP;
        profiles = {
          system = {
            sshUser = "motiejus";
            path =
              deployPkgsArm64.deploy-rs.lib.activate.nixos self.nixosConfigurations.vno3-rp3b;
            user = "root";
          };
        };
      };

      deploy.nodes.fra1-a = {
        hostname = myData.hosts."fra1-a.servers.jakst".jakstIP;
        profiles = {
          system = {
            sshUser = "motiejus";
            path =
              deployPkgsArm64.deploy-rs.lib.activate.nixos self.nixosConfigurations.fra1-a;
            user = "root";
          };
        };
      };

      checks =
        builtins.mapAttrs (
          system: deployLib:
            deployLib.deployChecks self.deploy
            // {
              pre-commit-check = inputs.pre-commit-hooks.lib.${system}.run {
                src = ./.;
                hooks = {
                  alejandra.enable = true;
                  deadnix.enable = true;
                  statix.enable = true;
                };
              };
            }
        )
        deploy-rs.lib;
    }
    // flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import nixpkgs {inherit system;};
    in {
      devShells.default = pkgs.mkShellNoCC {
        packages = [
          pkgs.rage
          pkgs.ssh-to-age
          pkgs.age-plugin-yubikey
          pkgs.deploy-rs

          agenix.packages.${system}.agenix
        ];
        inherit (inputs.self.checks.${system}.pre-commit-check) shellHook;
      };

      formatter = pkgs.alejandra;
    });
}