diff --git a/nix-darwin/config/homebrew.nix b/nix-darwin/config/homebrew.nix
index 39fc86bb3..4ef7e14dd 100644
--- a/nix-darwin/config/homebrew.nix
+++ b/nix-darwin/config/homebrew.nix
@@ -27,6 +27,7 @@
       "steipete/tap"
     ];
     brews = [
+      "argo"
       "bun"
       "claude-squad"
       "cliproxyapi"
@@ -38,11 +39,13 @@
       "gemini-cli"
       "geth"
       "gnupg"
+      "grafana"
       "graphviz"
       "helm"
       "jjui"
       "kimi-cli"
       "kurtosis-cli"
+      "loki"
       "mactop"
       "mas"
       "mlx-lm"
@@ -67,6 +70,7 @@
       "reth"
       "sheldon"
       "sshpass"
+      "stripe-cli"
       "temporal"
       "tmux"
       "trash"
diff --git a/spec/npm_globals_spec.sh b/spec/npm_globals_spec.sh
index 67a737d6b..265d0c4fc 100644
--- a/spec/npm_globals_spec.sh
+++ b/spec/npm_globals_spec.sh
@@ -248,8 +248,10 @@ EOF
 
   # Installed at the wanted version, but its platform-native optionalDependency
   # directory is absent -> must be reinstalled, not skipped.
-  os_tok=$(uname -s | tr 'A-Z' 'a-z'); [ "$os_tok" = "darwin" ] || os_tok="linux"
-  cpu_tok=$(uname -m); case "$cpu_tok" in arm64|aarch64) cpu_tok=arm64 ;; *) cpu_tok=x64 ;; esac
+  os_tok=$(uname -s | tr '[:upper:]' '[:lower:]')
+  [ "$os_tok" = "darwin" ] || os_tok="linux"
+  cpu_tok=$(uname -m)
+  case "$cpu_tok" in arm64 | aarch64) cpu_tok=arm64 ;; *) cpu_tok=x64 ;; esac
   mkdir -p "$GM/nativecli"
   cat >"$GM/nativecli/package.json" <<EOF
 {