diff --git a/.codex/config.toml b/.codex/config.toml
new file mode 100644
index 0000000..42b4e66
--- /dev/null
+++ b/.codex/config.toml
@@ -0,0 +1,5 @@
+## Me
+
+[mcp_servers.nixos]
+command = "nix"
+args = ["run", "github:utensils/mcp-nixos", "--"]