diff --git a/README.md b/README.md
index 69aa0c22..26d2a51f 100644
--- a/README.md
+++ b/README.md
@@ -73,9 +73,11 @@ Nix/NixOS采用了“包（Package）”的理念，将Linux内核、驱动、
 * system.nix: 系统总体配置（nixos-rebuild的配置）
   * sys/cli.nix: 系统命令行配置
   * sys/gui.nix: 系统图形配置
+  * modules/: 系统模块
 * home.nix: 用户总体配置（home-manager的配置）
   * usr/cli.nix: 用户命令行配置
   * usr/gui.nix: 用户图形配置
+  * modules/: 用户模块
 * nix-on-droid.nix: 安卓总体配置（nix-on-droid的配置）
 * modules/: nixos/home-manager通用的模块
 
diff --git a/home.nix b/home.nix
index 4ea7fffc..a3ae8f79 100644
--- a/home.nix
+++ b/home.nix
@@ -14,6 +14,7 @@
 {
   imports = [
     ./opt.nix
+    ./modules/cachix.nix
     ./usr/cli.nix
     # Q: how to use isGui here?
     # A: Not possible.
diff --git a/usr/modules/cachix.nix b/usr/modules/cachix.nix
new file mode 100644
index 00000000..d476701e
--- /dev/null
+++ b/usr/modules/cachix.nix
@@ -0,0 +1,11 @@
+{ config, lib, ...}:
+
+{
+  imports = [../../modules/cachix.nix];
+  config = lib.mkIf (
+    (builtins.pathExists config.cachix_dhall) &&
+    (config.cachix_packages != [])
+  ) {
+    home.activation = lib.hm.dag.entryAfter ["writeBoundary"] config._cachix_push;
+  };
+}