support arch

ask

@@ -1,10 +1,12 @@
 #!/usr/bin/env bash
 
 : <<'DOC'
-ask — AI terminal assistant (macOS)
+ask — AI terminal assistant (macOS/Linux)
 
-Setup API key (Keychain):
+Setup API key (macOS Keychain):
   security add-generic-password -a "$USER" -s TK_AI_API_TOKEN -w "YOUR_API_KEY"
+Setup API key (Arch/Linux — libsecret):
+  echo "YOUR_API_KEY" | secret-tool store --label "AI API Token" service TK_AI_API_TOKEN
 
 Usage:
   ask "question"
@@ -17,6 +19,15 @@ SERVER="https://ai.acbpro.com/v1/chat/completions"
 MODEL="gpt-5.3-codex"
 KEY_NAME="TK_AI_API_TOKEN"
 
+# ===== OS DETECTION =====
+if [ -f /etc/arch-release ]; then
+  OS="arch"
+elif [ "$(uname -s)" = "Darwin" ]; then
+  OS="macos"
+else
+  OS="linux"
+fi
+
 VERBOSE=0
 INTERACTIVE=0
 
@@ -37,10 +48,17 @@ while [[ "$1" == -* ]]; do
 done
 
 # ===== LOAD TOKEN =====
-API_TOKEN=$(security find-generic-password -a "$USER" -s "$KEY_NAME" -w 2>/dev/null | tr -d '\n')
+case "$OS" in
+  macos)
+    API_TOKEN=$(security find-generic-password -a "$USER" -s "$KEY_NAME" -w 2>/dev/null | tr -d '\n')
+    ;;
+  *)
+    API_TOKEN=$(secret-tool lookup service "$KEY_NAME" 2>/dev/null | tr -d '\n')
+    ;;
+esac
 
 if [ -z "$API_TOKEN" ]; then
-  echo "❌ API token not found in Keychain ($KEY_NAME)"
+  echo "❌ API token not found ($KEY_NAME)" >&2
   exit 1
 fi