diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..26de0bd
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR"
+
+# --- Colors ---
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+CYAN='\033[0;36m'
+BOLD='\033[1m'
+DIM='\033[2m'
+NC='\033[0m'
+
+# --- Config ---
+KEYSTORE_DIR="keystore"
+KEYSTORE_FILE="$KEYSTORE_DIR/radio247-release.jks"
+KEY_ALIAS="radio247"
+DIST_DIR="dist"
+GRADLE_BUILD_FILE="app/build.gradle.kts"
+
+banner() {
+    echo ""
+    echo -e "${CYAN}╔══════════════════════════════════╗${NC}"
+    echo -e "${CYAN}║${BOLD}     Radio 247 Build Tool         ${NC}${CYAN}║${NC}"
+    echo -e "${CYAN}╚══════════════════════════════════╝${NC}"
+    echo ""
+}
+
+info()    { echo -e "${BLUE}▸${NC} $1"; }
+success() { echo -e "${GREEN}✓${NC} $1"; }
+warn()    { echo -e "${YELLOW}⚠${NC} $1"; }
+error()   { echo -e "${RED}✗${NC} $1"; }
+
+main_menu() {
+    echo -e "${BOLD}What would you like to do?${NC}"
+    echo ""
+    echo -e "  ${BOLD}1)${NC} Build Release APK  ${DIM}(signed, shareable)${NC}"
+    echo -e "  ${BOLD}2)${NC} Build Debug APK    ${DIM}(quick, for testing)${NC}"
+    echo -e "  ${BOLD}3)${NC} Manage Keystore    ${DIM}(create or check signing key)${NC}"
+    echo -e "  ${BOLD}4)${NC} Clean              ${DIM}(remove build artifacts)${NC}"
+    echo -e "  ${BOLD}5)${NC} Exit"
+    echo ""
+
+    local choice
+    read -rp "> " choice
+    case $choice in
+        1) build_release ;;
+        2) build_debug ;;
+        3) manage_keystore ;;
+        4) clean_build ;;
+        5) echo ""; exit 0 ;;
+        *) warn "Invalid choice. Pick 1-5." ;;
+    esac
+}
+
+# Placeholder functions — implemented in subsequent tasks
+build_release()    { warn "Not yet implemented"; }
+build_debug()      { warn "Not yet implemented"; }
+manage_keystore()  { warn "Not yet implemented"; }
+clean_build()      { warn "Not yet implemented"; }
+
+# --- Main ---
+banner
+while true; do
+    main_menu
+    echo ""
+done