diff --git a/setup.sh b/setup.sh
index e877694..175e0d5 100644
--- a/setup.sh
+++ b/setup.sh
@@ -152,7 +152,7 @@ EOF
 start_bot() {
   # Bun auto-loads .env; no need to run dotenv explicitly
   # Ensure Bun has a TTY for interactive menu input
-  exec bun run start < /dev/tty
+  exec bun index.ts < /dev/tty > /dev/tty 2>&1
 }
 
 main "$@"
diff --git a/src/ui/App.tsx b/src/ui/App.tsx
index b0cd784..c2b76e2 100644
--- a/src/ui/App.tsx
+++ b/src/ui/App.tsx
@@ -1,5 +1,5 @@
 import React, { useState } from "react";
-import { Box, Text, useInput } from "ink";
+import { Box, Text, useInput, useStdin } from "ink";
 import { TrendApp } from "./TrendApp";
 import { MakerApp } from "./MakerApp";
 import { OffsetMakerApp } from "./OffsetMakerApp";
@@ -32,9 +32,15 @@ const STRATEGIES: StrategyOption[] = [
   },
 ];
 
-const inputSupported = Boolean(process.stdin && (process.stdin as any).isTTY);
+// Prefer Ink's stdin detection to avoid false negatives when spawned by shells
+// that don't propagate process.stdin TTY flags correctly.
+function useInputSupported() {
+  const { isRawModeSupported } = useStdin();
+  return Boolean(isRawModeSupported);
+}
 
 export function App() {
+  const inputSupported = useInputSupported();
   const [cursor, setCursor] = useState(0);
   const [selected, setSelected] = useState<StrategyOption | null>(null);
 
diff --git a/src/ui/MakerApp.tsx b/src/ui/MakerApp.tsx
index 4c1a88d..85be540 100644
--- a/src/ui/MakerApp.tsx
+++ b/src/ui/MakerApp.tsx
@@ -1,5 +1,5 @@
 import React, { useEffect, useRef, useState } from "react";
-import { Box, Text, useInput } from "ink";
+import { Box, Text, useInput, useStdin } from "ink";
 import { makerConfig } from "../config";
 import { AsterExchangeAdapter } from "../exchanges/aster-adapter";
 import { MakerEngine, type MakerEngineSnapshot } from "../core/maker-engine";
@@ -10,9 +10,13 @@ interface MakerAppProps {
   onExit: () => void;
 }
 
-const inputSupported = Boolean(process.stdin && (process.stdin as any).isTTY);
+function useInputSupported() {
+  const { isRawModeSupported } = useStdin();
+  return Boolean(isRawModeSupported);
+}
 
 export function MakerApp({ onExit }: MakerAppProps) {
+  const inputSupported = useInputSupported();
   const [snapshot, setSnapshot] = useState<MakerEngineSnapshot | null>(null);
   const [error, setError] = useState<Error | null>(null);
   const engineRef = useRef<MakerEngine | null>(null);
diff --git a/src/ui/OffsetMakerApp.tsx b/src/ui/OffsetMakerApp.tsx
index bd9a1d9..df8405f 100644
--- a/src/ui/OffsetMakerApp.tsx
+++ b/src/ui/OffsetMakerApp.tsx
@@ -1,5 +1,5 @@
 import React, { useEffect, useRef, useState } from "react";
-import { Box, Text, useInput } from "ink";
+import { Box, Text, useInput, useStdin } from "ink";
 import { makerConfig } from "../config";
 import { AsterExchangeAdapter } from "../exchanges/aster-adapter";
 import { OffsetMakerEngine, type OffsetMakerEngineSnapshot } from "../core/offset-maker-engine";
@@ -10,9 +10,13 @@ interface OffsetMakerAppProps {
   onExit: () => void;
 }
 
-const inputSupported = Boolean(process.stdin && (process.stdin as any).isTTY);
+function useInputSupported() {
+  const { isRawModeSupported } = useStdin();
+  return Boolean(isRawModeSupported);
+}
 
 export function OffsetMakerApp({ onExit }: OffsetMakerAppProps) {
+  const inputSupported = useInputSupported();
   const [snapshot, setSnapshot] = useState<OffsetMakerEngineSnapshot | null>(null);
   const [error, setError] = useState<Error | null>(null);
   const engineRef = useRef<OffsetMakerEngine | null>(null);
diff --git a/src/ui/TrendApp.tsx b/src/ui/TrendApp.tsx
index 6eef9a2..8301d09 100644
--- a/src/ui/TrendApp.tsx
+++ b/src/ui/TrendApp.tsx
@@ -1,5 +1,5 @@
 import React, { useEffect, useRef, useState } from "react";
-import { Box, Text, useInput } from "ink";
+import { Box, Text, useInput, useStdin } from "ink";
 import { tradingConfig } from "../config";
 import { AsterExchangeAdapter } from "../exchanges/aster-adapter";
 import { TrendEngine, type TrendEngineSnapshot } from "../core/trend-engine";
@@ -12,9 +12,13 @@ interface TrendAppProps {
   onExit: () => void;
 }
 
-const inputSupported = Boolean(process.stdin && (process.stdin as any).isTTY);
+function useInputSupported() {
+  const { isRawModeSupported } = useStdin();
+  return Boolean(isRawModeSupported);
+}
 
 export function TrendApp({ onExit }: TrendAppProps) {
+  const inputSupported = useInputSupported();
   const [snapshot, setSnapshot] = useState<TrendEngineSnapshot | null>(null);
   const [error, setError] = useState<Error | null>(null);
   const engineRef = useRef<TrendEngine | null>(null);