feat: add flake support

nix/default.nix

@@ -0,0 +1,60 @@
+{
+  lib,
+  libX11,
+  libinput,
+  libxcb,
+  libxkbcommon,
+  pixman,
+  pkg-config,
+  stdenv,
+  wayland,
+  wayland-protocols,
+  wayland-scanner,
+  wlroots_0_17,
+  xcbutilwm,
+  xwayland,
+  enableXWayland ? true,
+  meson,
+  ninja,
+}:
+let
+  pname = "maomaowm";
+in
+stdenv.mkDerivation {
+  inherit pname;
+  version = "nightly";
+
+  src = ../.;
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+    wayland-scanner
+  ];
+
+  buildInputs =
+    [
+      libinput
+      libxcb
+      libxkbcommon
+      pixman
+      wayland
+      wayland-protocols
+      wlroots_0_17
+    ]
+    ++ lib.optionals enableXWayland [
+      libX11
+      xcbutilwm
+      xwayland
+    ];
+
+  meta = {
+    mainProgram = "maomao";
+    description = "A streamlined but feature-rich Wayland compositor";
+    homepage = "https://github.com/DreamMaoMao/maomaowm";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ ];
+    platforms = lib.platforms.unix;
+  };
+}

nix/hm-modules.nix

@@ -0,0 +1,45 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+
+let
+  maomaowm = pkgs.callPackage ./. { };
+in
+{
+  options = {
+    wayland.windowManager.maomaowm = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+      };
+
+      settings = lib.mkOption {
+        type = lib.types.str;
+        default = "";
+      };
+
+      autostart_sh = lib.mkOption {
+        type = lib.types.str;
+        default = "";
+      };
+    };
+  };
+
+  config = lib.mkIf config.wayland.windowManager.maomaowm.enable {
+    home.packages = [ maomaowm ];
+
+    home.file = {
+      ".config/maomao/config.conf" = {
+        text = config.wayland.windowManager.maomaowm.settings;
+      };
+
+      ".config/maomao/autostart.sh" = {
+        text = config.wayland.windowManager.maomaowm.autostart_sh;
+        executable = true;
+      };
+    };
+  };
+}