添加 Nix Flake 支持

.gitignore

@@ -4,3 +4,4 @@ dwm
 compile_commands.json
 .cache
 statusbar/temp
+result/

README.md

@@ -22,6 +22,12 @@ export DWM=~/workspace/dwm
 exec dwm
 ```
 
+### Nix Flake
+
+```sh
+nix run github:yaocccc/dwm
+```
+
 ## 状态栏
 
 请将每一个块置为下列样式, 可直接使用本仓库statusbar相关脚本 或参考使用

flake.nix

@@ -0,0 +1,27 @@
+{
+  description = "A very basic flake";
+
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+  }:
+    flake-utils.lib.eachDefaultSystem (
+      system: let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in rec {
+        packages = flake-utils.lib.flattenTree {
+          dwm = pkgs.dwm.overrideAttrs (old: {
+            src = pkgs.lib.cleanSource self;
+          });
+        };
+        defaultPackage = packages.dwm;
+        apps.default = flake-utils.lib.mkApp {
+          drv = packages.dwm;
+          exePath = "/bin/dwm";
+        };
+      }
+    );
+}