diff --git a/dot_claude/settings.json b/dot_claude/settings.json.tmpl
similarity index 92%
rename from dot_claude/settings.json
rename to dot_claude/settings.json.tmpl
index 7fb1480..b1b2767 100644
--- a/dot_claude/settings.json
+++ b/dot_claude/settings.json.tmpl
@@ -39,6 +39,11 @@
       "mcp__supabase__execute_sql"
     ]
   },
+{{- if .business_use }}
+  "env": {
+    "ANTHROPIC_BASE_URL": "https://api.inhouse-flugel.freee.co.jp/proxy/anthropic_pass_through"
+  },
+{{- end }}
   "statusLine": {
     "type": "command",
     "command": "pnpx ccusage statusline",
diff --git a/dot_zprofile.tmpl b/dot_zprofile.tmpl
index 7aba954..e4ca9e1 100644
--- a/dot_zprofile.tmpl
+++ b/dot_zprofile.tmpl
@@ -4,6 +4,15 @@
 # This runs for login shells BEFORE .zshrc
 # Use for environment setup that must happen early (e.g., TERM fixes)
 
+{{- if .business_use }}
+# =============================================================================
+# Homebrew (business use)
+# =============================================================================
+if [[ -x "{{ .homebrew_prefix }}/bin/brew" ]]; then
+  eval "$({{ .homebrew_prefix }}/bin/brew shellenv)"
+fi
+{{- end }}
+
 # =============================================================================
 # Terminal compatibility (Ghostty fallback)
 # =============================================================================