diff --git a/config/cargo-config b/config/cargo-config
new file mode 100644
index 0000000..99e3738
--- /dev/null
+++ b/config/cargo-config
@@ -0,0 +1,5 @@
+[source.crates-io]
+registry = "https://github.com/rust-lang/crates.io-index"
+replace-with = 'ustc'
+[source.ustc]
+registry = "git://mirrors.ustc.edu.cn/crates.io-index"
\ No newline at end of file
diff --git a/home.nix b/home.nix
index bd68cd9..f753184 100644
--- a/home.nix
+++ b/home.nix
@@ -34,14 +34,15 @@
     proxychains-ng
     less
     openssh
-    wget
-    curl
     rnix-lsp.rnix-lsp
+    qemu
   ];
 
   # Home Manager is pretty good at managing dotfiles. The primary way to manage
   # plain files is through 'home.file'.
-  home.file = {};
+  home.file = {
+    ".cargo/config".source = ./config/cargo-config;
+  };
 
   # You can also manage environment variables but you will have to manually
   # source