{
  description = "xyno doin nixos";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    nixpkgs-master.url = "github:nixos/nixpkgs?ref=master";
    mobile-nixos.url = "github:mobile-nixos/mobile-nixos";
    mobile-nixos.flake = false;
    nix-flatpak.url = "github:gmodena/nix-flatpak?ref=latest";
    home-manager.url = "github:nix-community/home-manager";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
    nixos-hardware.url = "github:NixOS/nixos-hardware/master";
    quadlet.url = "github:SEIAROTg/quadlet-nix";

    # software
    lanzaboote = {
      url = "github:nix-community/lanzaboote/v0.4.2";

      # Optional but recommended to limit the size of your system closure.
      inputs.nixpkgs.follows = "nixpkgs";
    };
    lix-module = {
      url = "https://git.lix.systems/lix-project/nixos-module/archive/2.93.2-1.tar.gz";
      # inputs.nixpkgs.follows = "nixpkgs";
    };
    zen-browser.url = "github:0xc000022070/zen-browser-flake";
    zen-browser.inputs.nixpkgs.follows = "nixpkgs-master";
    kmonad = {
      url = "git+https://github.com/jokesper/kmonad?dir=nix&ref=feat-tap-overlap";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    niri.url = "github:YaLTeR/niri";
    niri.inputs.nixpkgs.follows = "nixpkgs-master";
    # nheko.url = "github:Nheko-Reborn/nheko";
    # nheko.flake = false;

    # helix
    helix.url = "github:sofusa/helix-pull-diagnostics";
    helix.inputs.nixpkgs.follows = "nixpkgs-master";
    csharp-language-server.url = "github:sofusa/csharp-language-server";
    csharp-language-server.inputs.nixpkgs.follows = "nixpkgs-master";

  };

  outputs =
    inputs@{
      self,
      nixpkgs,
      nixpkgs-master,
      ...
    }:
    let
      lib = nixpkgs.lib.extend (
        s: super: {
          xyno = import ./lib {
            inherit inputs nixpkgs self;
            lib = s;
          };
        }
      );
      overlays = [ self.overlays.default
              # lix-module.overlays.default
      (final: prev: let
        versionSuffix = "-horribly-patched";
        lix = final.applyPatches {
          name = "lix${versionSuffix}";
          src = inputs.lix-module.inputs.lix;
          patches = [
            (final.fetchpatch {
              name = "lix-2.93-structuredAttrs.patch";
              url = "https://gerrit.lix.systems/changes/lix~3668/revisions/2/patch?download&raw";
              hash = "sha256-JQlAU0texMa7DMrqk447SXJUEu1k4IP9z8mjCHyskVc=";
            })
          ];
        };
        patchedOverlay = import (inputs.lix-module + "/overlay.nix") {
          inherit versionSuffix lix;
        };
      in
        patchedOverlay final prev)
      ];
      genPkgs =
        system:
        import nixpkgs {
          inherit system overlays;
          config.allowUnfree = true;
        };
    in
    {
      overlays.default = final: prev: {
        unstable = import nixpkgs-master {
          system = prev.system;
          config.allowUnfree = true;
        };
      };
      nixosConfigurations = lib.xyno.loadInstances ./instances (
        [
          # inputs.lix-module.nixosModules.default
          inputs.kmonad.nixosModules.default
          inputs.home-manager.nixosModules.default
          inputs.lanzaboote.nixosModules.lanzaboote
          inputs.quadlet.nixosModules.quadlet
        ]
        ++ (import ./modules/module-list.nix)
      );
      devShell."x86_64-linux" =
        let
          pkgs = genPkgs "x86_64-linux";
        in
        pkgs.mkShell {
          packages = [
            pkgs.nixfmt-rfc-style
            pkgs.nil
          ];
        };
    };
}