diff --git a/extras/dev.nix b/extras/dev.nix
index 6efa1b3..7c3a5f4 100644
--- a/extras/dev.nix
+++ b/extras/dev.nix
@@ -70,7 +70,7 @@
     #rust
     bacon
     cargo-expand
-    # cargo-feature
+    cargo-feature
     cargo-generate
     cargo-watch
     elf2uf2-rs
diff --git a/users/tao.nix b/users/tao.nix
index b0c990e..b495147 100644
--- a/users/tao.nix
+++ b/users/tao.nix
@@ -6,6 +6,7 @@
   ...
 }: {
   users.users.tao.packages = with pkgs; [
+    mousai
     toastify
     man-pages
     man-pages-posix